20558850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{811}}^1$

素因数の和:852

約数の個数: 72

約数和(自身を含む): 55277712

約数和(自身を除く): 34718862

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 169, 195, 325, 338, 390, 507, 650, 811, 845, 975, 1014, 1622, 1690, 1950, 2433, 2535, 4055, 4225, 4866, 5070, 8110, 8450, 10543, 12165, 12675, 20275, 21086, 24330, 25350, 31629, 40550, 52715, 60825, 63258, 105430, 121650, 137059, 158145, 263575, 274118, 316290, 411177, 527150, 685295, 790725, 822354, 1370590, 1581450, 2055885, 3426475, 4111770, 6852950, 10279425, 20558850]

約数ペア:

[(1, 20558850), (2, 10279425), (3, 6852950), (5, 4111770), (6, 3426475), (10, 2055885), (13, 1581450), (15, 1370590), (25, 822354), (26, 790725), (30, 685295), (39, 527150), (50, 411177), (65, 316290), (75, 274118), (78, 263575), (130, 158145), (150, 137059), (169, 121650), (195, 105430), (325, 63258), (338, 60825), (390, 52715), (507, 40550), (650, 31629), (811, 25350), (845, 24330), (975, 21086), (1014, 20275), (1622, 12675), (1690, 12165), (1950, 10543), (2433, 8450), (2535, 8110), (4055, 5070), (4225, 4866)]