20614140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1613}}^1$

素因数の和:1699

約数の個数: 72

約数和(自身を含む): 63449568

約数和(自身を除く): 42835428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 1613, 2130, 2556, 3195, 3226, 4260, 4839, 6390, 6452, 8065, 9678, 12780, 14517, 16130, 19356, 24195, 29034, 32260, 48390, 58068, 72585, 96780, 114523, 145170, 229046, 290340, 343569, 458092, 572615, 687138, 1030707, 1145230, 1374276, 1717845, 2061414, 2290460, 3435690, 4122828, 5153535, 6871380, 10307070, 20614140]

約数ペア:

[(1, 20614140), (2, 10307070), (3, 6871380), (4, 5153535), (5, 4122828), (6, 3435690), (9, 2290460), (10, 2061414), (12, 1717845), (15, 1374276), (18, 1145230), (20, 1030707), (30, 687138), (36, 572615), (45, 458092), (60, 343569), (71, 290340), (90, 229046), (142, 145170), (180, 114523), (213, 96780), (284, 72585), (355, 58068), (426, 48390), (639, 32260), (710, 29034), (852, 24195), (1065, 19356), (1278, 16130), (1420, 14517), (1613, 12780), (2130, 9678), (2556, 8065), (3195, 6452), (3226, 6390), (4260, 4839)]