20290320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28181}}^1$

素因数の和:28200

約数の個数: 60

約数和(自身を含む): 68144076

約数和(自身を除く): 47853756

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28181, 56362, 84543, 112724, 140905, 169086, 225448, 253629, 281810, 338172, 422715, 450896, 507258, 563620, 676344, 845430, 1014516, 1127240, 1268145, 1352688, 1690860, 2029032, 2254480, 2536290, 3381720, 4058064, 5072580, 6763440, 10145160, 20290320]

約数ペア:

[(1, 20290320), (2, 10145160), (3, 6763440), (4, 5072580), (5, 4058064), (6, 3381720), (8, 2536290), (9, 2254480), (10, 2029032), (12, 1690860), (15, 1352688), (16, 1268145), (18, 1127240), (20, 1014516), (24, 845430), (30, 676344), (36, 563620), (40, 507258), (45, 450896), (48, 422715), (60, 338172), (72, 281810), (80, 253629), (90, 225448), (120, 169086), (144, 140905), (180, 112724), (240, 84543), (360, 56362), (720, 28181)]