20184263920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{1987}}^1$

素因数の和:2223

約数の個数: 160

約数和(自身を含む): 50939239680

約数和(自身を除く): 30754975760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 163, 164, 190, 205, 304, 326, 328, 380, 410, 652, 656, 760, 779, 815, 820, 1304, 1520, 1558, 1630, 1640, 1987, 2608, 3097, 3116, 3260, 3280, 3895, 3974, 6194, 6232, 6520, 6683, 7790, 7948, 9935, 12388, 12464, 13040, 13366, 15485, 15580, 15896, 19870, 24776, 26732, 30970, 31160, 31792, 33415, 37753, 39740, 49552, 53464, 61940, 62320, 66830, 75506, 79480, 81467, 106928, 123880, 126977, 133660, 151012, 158960, 162934, 188765, 247760, 253954, 267320, 302024, 323881, 325868, 377530, 407335, 507908, 534640, 604048, 634885, 647762, 651736, 755060, 814670, 1015816, 1269770, 1295524, 1303472, 1510120, 1547873, 1619405, 1629340, 2031632, 2539540, 2591048, 3020240, 3095746, 3238810, 3258680, 5079080, 5182096, 6153739, 6191492, 6477620, 6517360, 7739365, 10158160, 12307478, 12382984, 12955240, 13279121, 15478730, 24614956, 24765968, 25910480, 26558242, 30768695, 30957460, 49229912, 53116484, 61537390, 61914920, 66395605, 98459824, 106232968, 123074780, 123829840, 132791210, 212465936, 246149560, 252303299, 265582420, 492299120, 504606598, 531164840, 1009213196, 1062329680, 1261516495, 2018426392, 2523032990, 4036852784, 5046065980, 10092131960, 20184263920]

約数ペア:

[(1, 20184263920), (2, 10092131960), (4, 5046065980), (5, 4036852784), (8, 2523032990), (10, 2018426392), (16, 1261516495), (19, 1062329680), (20, 1009213196), (38, 531164840), (40, 504606598), (41, 492299120), (76, 265582420), (80, 252303299), (82, 246149560), (95, 212465936), (152, 132791210), (163, 123829840), (164, 123074780), (190, 106232968), (205, 98459824), (304, 66395605), (326, 61914920), (328, 61537390), (380, 53116484), (410, 49229912), (652, 30957460), (656, 30768695), (760, 26558242), (779, 25910480), (815, 24765968), (820, 24614956), (1304, 15478730), (1520, 13279121), (1558, 12955240), (1630, 12382984), (1640, 12307478), (1987, 10158160), (2608, 7739365), (3097, 6517360), (3116, 6477620), (3260, 6191492), (3280, 6153739), (3895, 5182096), (3974, 5079080), (6194, 3258680), (6232, 3238810), (6520, 3095746), (6683, 3020240), (7790, 2591048), (7948, 2539540), (9935, 2031632), (12388, 1629340), (12464, 1619405), (13040, 1547873), (13366, 1510120), (15485, 1303472), (15580, 1295524), (15896, 1269770), (19870, 1015816), (24776, 814670), (26732, 755060), (30970, 651736), (31160, 647762), (31792, 634885), (33415, 604048), (37753, 534640), (39740, 507908), (49552, 407335), (53464, 377530), (61940, 325868), (62320, 323881), (66830, 302024), (75506, 267320), (79480, 253954), (81467, 247760), (106928, 188765), (123880, 162934), (126977, 158960), (133660, 151012)]