20207850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:312

約数の個数: 96

約数和(自身を含む): 55454784

約数和(自身を除く): 35246934

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 43, 50, 65, 75, 78, 86, 129, 130, 150, 195, 215, 241, 258, 325, 390, 430, 482, 559, 645, 650, 723, 975, 1075, 1118, 1205, 1290, 1446, 1677, 1950, 2150, 2410, 2795, 3133, 3225, 3354, 3615, 5590, 6025, 6266, 6450, 7230, 8385, 9399, 10363, 12050, 13975, 15665, 16770, 18075, 18798, 20726, 27950, 31089, 31330, 36150, 41925, 46995, 51815, 62178, 78325, 83850, 93990, 103630, 134719, 155445, 156650, 234975, 259075, 269438, 310890, 404157, 469950, 518150, 673595, 777225, 808314, 1347190, 1554450, 2020785, 3367975, 4041570, 6735950, 10103925, 20207850]

約数ペア:

[(1, 20207850), (2, 10103925), (3, 6735950), (5, 4041570), (6, 3367975), (10, 2020785), (13, 1554450), (15, 1347190), (25, 808314), (26, 777225), (30, 673595), (39, 518150), (43, 469950), (50, 404157), (65, 310890), (75, 269438), (78, 259075), (86, 234975), (129, 156650), (130, 155445), (150, 134719), (195, 103630), (215, 93990), (241, 83850), (258, 78325), (325, 62178), (390, 51815), (430, 46995), (482, 41925), (559, 36150), (645, 31330), (650, 31089), (723, 27950), (975, 20726), (1075, 18798), (1118, 18075), (1205, 16770), (1290, 15665), (1446, 13975), (1677, 12050), (1950, 10363), (2150, 9399), (2410, 8385), (2795, 7230), (3133, 6450), (3225, 6266), (3354, 6025), (3615, 5590)]