31281900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{617}}^1$

素因数の和:660

約数の個数: 108

約数和(自身を含む): 98165592

約数和(自身を除く): 66883692

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 169, 195, 260, 300, 325, 338, 390, 507, 617, 650, 676, 780, 845, 975, 1014, 1234, 1300, 1690, 1851, 1950, 2028, 2468, 2535, 3085, 3380, 3702, 3900, 4225, 5070, 6170, 7404, 8021, 8450, 9255, 10140, 12340, 12675, 15425, 16042, 16900, 18510, 24063, 25350, 30850, 32084, 37020, 40105, 46275, 48126, 50700, 61700, 80210, 92550, 96252, 104273, 120315, 160420, 185100, 200525, 208546, 240630, 312819, 401050, 417092, 481260, 521365, 601575, 625638, 802100, 1042730, 1203150, 1251276, 1564095, 2085460, 2406300, 2606825, 3128190, 5213650, 6256380, 7820475, 10427300, 15640950, 31281900]

約数ペア:

[(1, 31281900), (2, 15640950), (3, 10427300), (4, 7820475), (5, 6256380), (6, 5213650), (10, 3128190), (12, 2606825), (13, 2406300), (15, 2085460), (20, 1564095), (25, 1251276), (26, 1203150), (30, 1042730), (39, 802100), (50, 625638), (52, 601575), (60, 521365), (65, 481260), (75, 417092), (78, 401050), (100, 312819), (130, 240630), (150, 208546), (156, 200525), (169, 185100), (195, 160420), (260, 120315), (300, 104273), (325, 96252), (338, 92550), (390, 80210), (507, 61700), (617, 50700), (650, 48126), (676, 46275), (780, 40105), (845, 37020), (975, 32084), (1014, 30850), (1234, 25350), (1300, 24063), (1690, 18510), (1851, 16900), (1950, 16042), (2028, 15425), (2468, 12675), (2535, 12340), (3085, 10140), (3380, 9255), (3702, 8450), (3900, 8021), (4225, 7404), (5070, 6170)]