91017990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{20639}}^1$

素因数の和:20666

約数の個数: 72

約数和(自身を含む): 275296320

約数和(自身を除く): 184278330

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 20639, 41278, 61917, 103195, 123834, 144473, 185751, 206390, 288946, 309585, 371502, 433419, 619170, 722365, 866838, 928755, 1011311, 1300257, 1444730, 1857510, 2022622, 2167095, 2600514, 3033933, 4334190, 5056555, 6067866, 6501285, 9101799, 10113110, 13002570, 15169665, 18203598, 30339330, 45508995, 91017990]

約数ペア:

[(1, 91017990), (2, 45508995), (3, 30339330), (5, 18203598), (6, 15169665), (7, 13002570), (9, 10113110), (10, 9101799), (14, 6501285), (15, 6067866), (18, 5056555), (21, 4334190), (30, 3033933), (35, 2600514), (42, 2167095), (45, 2022622), (49, 1857510), (63, 1444730), (70, 1300257), (90, 1011311), (98, 928755), (105, 866838), (126, 722365), (147, 619170), (210, 433419), (245, 371502), (294, 309585), (315, 288946), (441, 206390), (490, 185751), (630, 144473), (735, 123834), (882, 103195), (1470, 61917), (2205, 41278), (4410, 20639)]