20637900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{997}}^1$

素因数の和:1040

約数の個数: 108

約数和(自身を含む): 67568592

約数和(自身を除く): 46930692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 25, 30, 36, 45, 46, 50, 60, 69, 75, 90, 92, 100, 115, 138, 150, 180, 207, 225, 230, 276, 300, 345, 414, 450, 460, 575, 690, 828, 900, 997, 1035, 1150, 1380, 1725, 1994, 2070, 2300, 2991, 3450, 3988, 4140, 4985, 5175, 5982, 6900, 8973, 9970, 10350, 11964, 14955, 17946, 19940, 20700, 22931, 24925, 29910, 35892, 44865, 45862, 49850, 59820, 68793, 74775, 89730, 91724, 99700, 114655, 137586, 149550, 179460, 206379, 224325, 229310, 275172, 299100, 343965, 412758, 448650, 458620, 573275, 687930, 825516, 897300, 1031895, 1146550, 1375860, 1719825, 2063790, 2293100, 3439650, 4127580, 5159475, 6879300, 10318950, 20637900]

約数ペア:

[(1, 20637900), (2, 10318950), (3, 6879300), (4, 5159475), (5, 4127580), (6, 3439650), (9, 2293100), (10, 2063790), (12, 1719825), (15, 1375860), (18, 1146550), (20, 1031895), (23, 897300), (25, 825516), (30, 687930), (36, 573275), (45, 458620), (46, 448650), (50, 412758), (60, 343965), (69, 299100), (75, 275172), (90, 229310), (92, 224325), (100, 206379), (115, 179460), (138, 149550), (150, 137586), (180, 114655), (207, 99700), (225, 91724), (230, 89730), (276, 74775), (300, 68793), (345, 59820), (414, 49850), (450, 45862), (460, 44865), (575, 35892), (690, 29910), (828, 24925), (900, 22931), (997, 20700), (1035, 19940), (1150, 17946), (1380, 14955), (1725, 11964), (1994, 10350), (2070, 9970), (2300, 8973), (2991, 6900), (3450, 5982), (3988, 5175), (4140, 4985)]