319571280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:578

約数の個数: 240

約数和(自身を含む): 1237242240

約数和(自身を除く): 917670960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 163, 168, 180, 210, 240, 252, 280, 315, 326, 336, 360, 389, 420, 489, 504, 560, 630, 652, 720, 778, 815, 840, 978, 1008, 1141, 1167, 1260, 1304, 1467, 1556, 1630, 1680, 1945, 1956, 2282, 2334, 2445, 2520, 2608, 2723, 2934, 3112, 3260, 3423, 3501, 3890, 3912, 4564, 4668, 4890, 5040, 5446, 5705, 5835, 5868, 6224, 6520, 6846, 7002, 7335, 7780, 7824, 8169, 9128, 9336, 9780, 10269, 10892, 11410, 11670, 11736, 13040, 13615, 13692, 14004, 14670, 15560, 16338, 17115, 17505, 18256, 18672, 19560, 20538, 21784, 22820, 23340, 23472, 24507, 27230, 27384, 28008, 29340, 31120, 32676, 34230, 35010, 39120, 40845, 41076, 43568, 45640, 46680, 49014, 51345, 54460, 54768, 56016, 58680, 63407, 65352, 68460, 70020, 81690, 82152, 91280, 93360, 98028, 102690, 108920, 117360, 122535, 126814, 130704, 136920, 140040, 163380, 164304, 190221, 196056, 205380, 217840, 245070, 253628, 273840, 280080, 317035, 326760, 380442, 392112, 410760, 443849, 490140, 507256, 570663, 634070, 653520, 760884, 821520, 887698, 951105, 980280, 1014512, 1141326, 1268140, 1331547, 1521768, 1775396, 1902210, 1960560, 2219245, 2282652, 2536280, 2663094, 2853315, 3043536, 3550792, 3804420, 3994641, 4438490, 4565304, 5072560, 5326188, 5706630, 6657735, 7101584, 7608840, 7989282, 8876980, 9130608, 10652376, 11413260, 13315470, 15217680, 15978564, 17753960, 19973205, 21304752, 22826520, 26630940, 31957128, 35507920, 39946410, 45653040, 53261880, 63914256, 79892820, 106523760, 159785640, 319571280]

約数ペア:

[(1, 319571280), (2, 159785640), (3, 106523760), (4, 79892820), (5, 63914256), (6, 53261880), (7, 45653040), (8, 39946410), (9, 35507920), (10, 31957128), (12, 26630940), (14, 22826520), (15, 21304752), (16, 19973205), (18, 17753960), (20, 15978564), (21, 15217680), (24, 13315470), (28, 11413260), (30, 10652376), (35, 9130608), (36, 8876980), (40, 7989282), (42, 7608840), (45, 7101584), (48, 6657735), (56, 5706630), (60, 5326188), (63, 5072560), (70, 4565304), (72, 4438490), (80, 3994641), (84, 3804420), (90, 3550792), (105, 3043536), (112, 2853315), (120, 2663094), (126, 2536280), (140, 2282652), (144, 2219245), (163, 1960560), (168, 1902210), (180, 1775396), (210, 1521768), (240, 1331547), (252, 1268140), (280, 1141326), (315, 1014512), (326, 980280), (336, 951105), (360, 887698), (389, 821520), (420, 760884), (489, 653520), (504, 634070), (560, 570663), (630, 507256), (652, 490140), (720, 443849), (778, 410760), (815, 392112), (840, 380442), (978, 326760), (1008, 317035), (1141, 280080), (1167, 273840), (1260, 253628), (1304, 245070), (1467, 217840), (1556, 205380), (1630, 196056), (1680, 190221), (1945, 164304), (1956, 163380), (2282, 140040), (2334, 136920), (2445, 130704), (2520, 126814), (2608, 122535), (2723, 117360), (2934, 108920), (3112, 102690), (3260, 98028), (3423, 93360), (3501, 91280), (3890, 82152), (3912, 81690), (4564, 70020), (4668, 68460), (4890, 65352), (5040, 63407), (5446, 58680), (5705, 56016), (5835, 54768), (5868, 54460), (6224, 51345), (6520, 49014), (6846, 46680), (7002, 45640), (7335, 43568), (7780, 41076), (7824, 40845), (8169, 39120), (9128, 35010), (9336, 34230), (9780, 32676), (10269, 31120), (10892, 29340), (11410, 28008), (11670, 27384), (11736, 27230), (13040, 24507), (13615, 23472), (13692, 23340), (14004, 22820), (14670, 21784), (15560, 20538), (16338, 19560), (17115, 18672), (17505, 18256)]