31521750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:147

約数の個数: 128

約数和(自身を含む): 87744384

約数和(自身を除く): 56222634

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 53, 61, 65, 75, 78, 106, 122, 125, 130, 150, 159, 183, 195, 250, 265, 305, 318, 325, 366, 375, 390, 530, 610, 650, 689, 750, 793, 795, 915, 975, 1325, 1378, 1525, 1586, 1590, 1625, 1830, 1950, 2067, 2379, 2650, 3050, 3233, 3250, 3445, 3965, 3975, 4134, 4575, 4758, 4875, 6466, 6625, 6890, 7625, 7930, 7950, 9150, 9699, 9750, 10335, 11895, 13250, 15250, 16165, 17225, 19398, 19825, 19875, 20670, 22875, 23790, 32330, 34450, 39650, 39750, 42029, 45750, 48495, 51675, 59475, 80825, 84058, 86125, 96990, 99125, 103350, 118950, 126087, 161650, 172250, 198250, 210145, 242475, 252174, 258375, 297375, 404125, 420290, 484950, 516750, 594750, 630435, 808250, 1050725, 1212375, 1260870, 2101450, 2424750, 3152175, 5253625, 6304350, 10507250, 15760875, 31521750]

約数ペア:

[(1, 31521750), (2, 15760875), (3, 10507250), (5, 6304350), (6, 5253625), (10, 3152175), (13, 2424750), (15, 2101450), (25, 1260870), (26, 1212375), (30, 1050725), (39, 808250), (50, 630435), (53, 594750), (61, 516750), (65, 484950), (75, 420290), (78, 404125), (106, 297375), (122, 258375), (125, 252174), (130, 242475), (150, 210145), (159, 198250), (183, 172250), (195, 161650), (250, 126087), (265, 118950), (305, 103350), (318, 99125), (325, 96990), (366, 86125), (375, 84058), (390, 80825), (530, 59475), (610, 51675), (650, 48495), (689, 45750), (750, 42029), (793, 39750), (795, 39650), (915, 34450), (975, 32330), (1325, 23790), (1378, 22875), (1525, 20670), (1586, 19875), (1590, 19825), (1625, 19398), (1830, 17225), (1950, 16165), (2067, 15250), (2379, 13250), (2650, 11895), (3050, 10335), (3233, 9750), (3250, 9699), (3445, 9150), (3965, 7950), (3975, 7930), (4134, 7625), (4575, 6890), (4758, 6625), (4875, 6466)]