645133020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{219433}}^1$

素因数の和:219459

約数の個数: 72

約数和(自身を含む): 2101299984

約数和(自身を除く): 1456166964

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 219433, 438866, 658299, 877732, 1097165, 1316598, 1536031, 2194330, 2633196, 3072062, 3291495, 4388660, 4608093, 6144124, 6582990, 7680155, 9216186, 10752217, 13165980, 15360310, 18432372, 21504434, 23040465, 30720620, 32256651, 43008868, 46080930, 53761085, 64513302, 92161860, 107522170, 129026604, 161283255, 215044340, 322566510, 645133020]

約数ペア:

[(1, 645133020), (2, 322566510), (3, 215044340), (4, 161283255), (5, 129026604), (6, 107522170), (7, 92161860), (10, 64513302), (12, 53761085), (14, 46080930), (15, 43008868), (20, 32256651), (21, 30720620), (28, 23040465), (30, 21504434), (35, 18432372), (42, 15360310), (49, 13165980), (60, 10752217), (70, 9216186), (84, 7680155), (98, 6582990), (105, 6144124), (140, 4608093), (147, 4388660), (196, 3291495), (210, 3072062), (245, 2633196), (294, 2194330), (420, 1536031), (490, 1316598), (588, 1097165), (735, 877732), (980, 658299), (1470, 438866), (2940, 219433)]