64121580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18749}}^1$

素因数の和:18783

約数の個数: 72

約数和(自身を含む): 204750000

約数和(自身を除く): 140628420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 18749, 37498, 56247, 74996, 93745, 112494, 168741, 187490, 224988, 281235, 337482, 356231, 374980, 562470, 674964, 712462, 843705, 1068693, 1124940, 1424924, 1687410, 1781155, 2137386, 3206079, 3374820, 3562310, 4274772, 5343465, 6412158, 7124620, 10686930, 12824316, 16030395, 21373860, 32060790, 64121580]

約数ペア:

[(1, 64121580), (2, 32060790), (3, 21373860), (4, 16030395), (5, 12824316), (6, 10686930), (9, 7124620), (10, 6412158), (12, 5343465), (15, 4274772), (18, 3562310), (19, 3374820), (20, 3206079), (30, 2137386), (36, 1781155), (38, 1687410), (45, 1424924), (57, 1124940), (60, 1068693), (76, 843705), (90, 712462), (95, 674964), (114, 562470), (171, 374980), (180, 356231), (190, 337482), (228, 281235), (285, 224988), (342, 187490), (380, 168741), (570, 112494), (684, 93745), (855, 74996), (1140, 56247), (1710, 37498), (3420, 18749)]