64241940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{21851}}^1$

素因数の和:21877

約数の個数: 72

約数和(自身を含む): 209254752

約数和(自身を除く): 145012812

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, 21851, 43702, 65553, 87404, 109255, 131106, 152957, 218510, 262212, 305914, 327765, 437020, 458871, 611828, 655530, 764785, 917742, 1070699, 1311060, 1529570, 1835484, 2141398, 2294355, 3059140, 3212097, 4282796, 4588710, 5353495, 6424194, 9177420, 10706990, 12848388, 16060485, 21413980, 32120970, 64241940]

約数ペア:

[(1, 64241940), (2, 32120970), (3, 21413980), (4, 16060485), (5, 12848388), (6, 10706990), (7, 9177420), (10, 6424194), (12, 5353495), (14, 4588710), (15, 4282796), (20, 3212097), (21, 3059140), (28, 2294355), (30, 2141398), (35, 1835484), (42, 1529570), (49, 1311060), (60, 1070699), (70, 917742), (84, 764785), (98, 655530), (105, 611828), (140, 458871), (147, 437020), (196, 327765), (210, 305914), (245, 262212), (294, 218510), (420, 152957), (490, 131106), (588, 109255), (735, 87404), (980, 65553), (1470, 43702), (2940, 21851)]