68511019900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{279751}}^1$

素因数の和:279875

約数の個数: 72

約数和(自身を含む): 155407831040

約数和(自身を除く): 86896811140

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 79, 100, 124, 155, 158, 310, 316, 395, 620, 775, 790, 1550, 1580, 1975, 2449, 3100, 3950, 4898, 7900, 9796, 12245, 24490, 48980, 61225, 122450, 244900, 279751, 559502, 1119004, 1398755, 2797510, 5595020, 6993775, 8672281, 13987550, 17344562, 22100329, 27975100, 34689124, 43361405, 44200658, 86722810, 88401316, 110501645, 173445620, 216807025, 221003290, 433614050, 442006580, 552508225, 685110199, 867228100, 1105016450, 1370220398, 2210032900, 2740440796, 3425550995, 6851101990, 13702203980, 17127754975, 34255509950, 68511019900]

約数ペア:

[(1, 68511019900), (2, 34255509950), (4, 17127754975), (5, 13702203980), (10, 6851101990), (20, 3425550995), (25, 2740440796), (31, 2210032900), (50, 1370220398), (62, 1105016450), (79, 867228100), (100, 685110199), (124, 552508225), (155, 442006580), (158, 433614050), (310, 221003290), (316, 216807025), (395, 173445620), (620, 110501645), (775, 88401316), (790, 86722810), (1550, 44200658), (1580, 43361405), (1975, 34689124), (2449, 27975100), (3100, 22100329), (3950, 17344562), (4898, 13987550), (7900, 8672281), (9796, 6993775), (12245, 5595020), (24490, 2797510), (48980, 1398755), (61225, 1119004), (122450, 559502), (244900, 279751)]