639930690

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{145109}}^1$

素因数の和:145136

約数の個数: 72

約数和(自身を含む): 1935477180

約数和(自身を除く): 1295546490

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, 145109, 290218, 435327, 725545, 870654, 1015763, 1305981, 1451090, 2031526, 2176635, 2611962, 3047289, 4353270, 5078815, 6094578, 6529905, 7110341, 9141867, 10157630, 13059810, 14220682, 15236445, 18283734, 21331023, 30472890, 35551705, 42662046, 45709335, 63993069, 71103410, 91418670, 106655115, 127986138, 213310230, 319965345, 639930690]

約数ペア:

[(1, 639930690), (2, 319965345), (3, 213310230), (5, 127986138), (6, 106655115), (7, 91418670), (9, 71103410), (10, 63993069), (14, 45709335), (15, 42662046), (18, 35551705), (21, 30472890), (30, 21331023), (35, 18283734), (42, 15236445), (45, 14220682), (49, 13059810), (63, 10157630), (70, 9141867), (90, 7110341), (98, 6529905), (105, 6094578), (126, 5078815), (147, 4353270), (210, 3047289), (245, 2611962), (294, 2176635), (315, 2031526), (441, 1451090), (490, 1305981), (630, 1015763), (735, 870654), (882, 725545), (1470, 435327), (2205, 290218), (4410, 145109)]