20926320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:279

約数の個数: 160

約数和(自身を含む): 71995392

約数和(自身を除く): 51069072

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 23, 24, 30, 34, 40, 46, 48, 51, 60, 68, 69, 80, 85, 92, 102, 115, 120, 136, 138, 170, 184, 204, 223, 230, 240, 255, 272, 276, 340, 345, 368, 391, 408, 446, 460, 510, 552, 669, 680, 690, 782, 816, 892, 920, 1020, 1104, 1115, 1173, 1338, 1360, 1380, 1564, 1784, 1840, 1955, 2040, 2230, 2346, 2676, 2760, 3128, 3345, 3568, 3791, 3910, 4080, 4460, 4692, 5129, 5352, 5520, 5865, 6256, 6690, 7582, 7820, 8920, 9384, 10258, 10704, 11373, 11730, 13380, 15164, 15387, 15640, 17840, 18768, 18955, 20516, 22746, 23460, 25645, 26760, 30328, 30774, 31280, 37910, 41032, 45492, 46920, 51290, 53520, 56865, 60656, 61548, 75820, 76935, 82064, 87193, 90984, 93840, 102580, 113730, 123096, 151640, 153870, 174386, 181968, 205160, 227460, 246192, 261579, 303280, 307740, 348772, 410320, 435965, 454920, 523158, 615480, 697544, 871930, 909840, 1046316, 1230960, 1307895, 1395088, 1743860, 2092632, 2615790, 3487720, 4185264, 5231580, 6975440, 10463160, 20926320]

約数ペア:

[(1, 20926320), (2, 10463160), (3, 6975440), (4, 5231580), (5, 4185264), (6, 3487720), (8, 2615790), (10, 2092632), (12, 1743860), (15, 1395088), (16, 1307895), (17, 1230960), (20, 1046316), (23, 909840), (24, 871930), (30, 697544), (34, 615480), (40, 523158), (46, 454920), (48, 435965), (51, 410320), (60, 348772), (68, 307740), (69, 303280), (80, 261579), (85, 246192), (92, 227460), (102, 205160), (115, 181968), (120, 174386), (136, 153870), (138, 151640), (170, 123096), (184, 113730), (204, 102580), (223, 93840), (230, 90984), (240, 87193), (255, 82064), (272, 76935), (276, 75820), (340, 61548), (345, 60656), (368, 56865), (391, 53520), (408, 51290), (446, 46920), (460, 45492), (510, 41032), (552, 37910), (669, 31280), (680, 30774), (690, 30328), (782, 26760), (816, 25645), (892, 23460), (920, 22746), (1020, 20516), (1104, 18955), (1115, 18768), (1173, 17840), (1338, 15640), (1360, 15387), (1380, 15164), (1564, 13380), (1784, 11730), (1840, 11373), (1955, 10704), (2040, 10258), (2230, 9384), (2346, 8920), (2676, 7820), (2760, 7582), (3128, 6690), (3345, 6256), (3568, 5865), (3791, 5520), (3910, 5352), (4080, 5129), (4460, 4692)]