18988896875

素因数分解:

$5^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:467

約数の個数: 96

約数和(自身を含む): 27355124160

約数和(自身を除く): 8366227285

約数列:

[1, 5, 13, 19, 25, 65, 73, 95, 125, 247, 325, 337, 365, 475, 625, 949, 1235, 1387, 1625, 1685, 1825, 2375, 3125, 4381, 4745, 6175, 6403, 6935, 8125, 8425, 9125, 11875, 18031, 21905, 23725, 24601, 30875, 32015, 34675, 40625, 42125, 45625, 59375, 83239, 90155, 109525, 118625, 123005, 154375, 160075, 173375, 210625, 228125, 319813, 416195, 450775, 467419, 547625, 593125, 615025, 771875, 800375, 866875, 1053125, 1599065, 2080975, 2253875, 2337095, 2738125, 2965625, 3075125, 4001875, 4334375, 6076447, 7995325, 10404875, 11269375, 11685475, 13690625, 15375625, 20009375, 30382235, 39976625, 52024375, 56346875, 58427375, 76878125, 151911175, 199883125, 260121875, 292136875, 759555875, 999415625, 1460684375, 3797779375, 18988896875]

約数ペア:

[(1, 18988896875), (5, 3797779375), (13, 1460684375), (19, 999415625), (25, 759555875), (65, 292136875), (73, 260121875), (95, 199883125), (125, 151911175), (247, 76878125), (325, 58427375), (337, 56346875), (365, 52024375), (475, 39976625), (625, 30382235), (949, 20009375), (1235, 15375625), (1387, 13690625), (1625, 11685475), (1685, 11269375), (1825, 10404875), (2375, 7995325), (3125, 6076447), (4381, 4334375), (4745, 4001875), (6175, 3075125), (6403, 2965625), (6935, 2738125), (8125, 2337095), (8425, 2253875), (9125, 2080975), (11875, 1599065), (18031, 1053125), (21905, 866875), (23725, 800375), (24601, 771875), (30875, 615025), (32015, 593125), (34675, 547625), (40625, 467419), (42125, 450775), (45625, 416195), (59375, 319813), (83239, 228125), (90155, 210625), (109525, 173375), (118625, 160075), (123005, 154375)]