19915610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{733}}^1$

素因数の和:783

約数の個数: 64

約数和(自身を含む): 44392320

約数和(自身を除く): 24476710

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 38, 55, 65, 95, 110, 130, 143, 190, 209, 247, 286, 418, 494, 715, 733, 1045, 1235, 1430, 1466, 2090, 2470, 2717, 3665, 5434, 7330, 8063, 9529, 13585, 13927, 16126, 19058, 27170, 27854, 40315, 47645, 69635, 80630, 95290, 104819, 139270, 153197, 181051, 209638, 306394, 362102, 524095, 765985, 905255, 1048190, 1531970, 1810510, 1991561, 3983122, 9957805, 19915610]

約数ペア:

[(1, 19915610), (2, 9957805), (5, 3983122), (10, 1991561), (11, 1810510), (13, 1531970), (19, 1048190), (22, 905255), (26, 765985), (38, 524095), (55, 362102), (65, 306394), (95, 209638), (110, 181051), (130, 153197), (143, 139270), (190, 104819), (209, 95290), (247, 80630), (286, 69635), (418, 47645), (494, 40315), (715, 27854), (733, 27170), (1045, 19058), (1235, 16126), (1430, 13927), (1466, 13585), (2090, 9529), (2470, 8063), (2717, 7330), (3665, 5434)]