31207920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7649}}^1$

素因数の和:7682

約数の個数: 80

約数和(自身を含む): 102448800

約数和(自身を除く): 71240880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 7649, 15298, 22947, 30596, 38245, 45894, 61192, 76490, 91788, 114735, 122384, 130033, 152980, 183576, 229470, 260066, 305960, 367152, 390099, 458940, 520132, 611920, 650165, 780198, 917880, 1040264, 1300330, 1560396, 1835760, 1950495, 2080528, 2600660, 3120792, 3900990, 5201320, 6241584, 7801980, 10402640, 15603960, 31207920]

約数ペア:

[(1, 31207920), (2, 15603960), (3, 10402640), (4, 7801980), (5, 6241584), (6, 5201320), (8, 3900990), (10, 3120792), (12, 2600660), (15, 2080528), (16, 1950495), (17, 1835760), (20, 1560396), (24, 1300330), (30, 1040264), (34, 917880), (40, 780198), (48, 650165), (51, 611920), (60, 520132), (68, 458940), (80, 390099), (85, 367152), (102, 305960), (120, 260066), (136, 229470), (170, 183576), (204, 152980), (240, 130033), (255, 122384), (272, 114735), (340, 91788), (408, 76490), (510, 61192), (680, 45894), (816, 38245), (1020, 30596), (1360, 22947), (2040, 15298), (4080, 7649)]