721864260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{308489}}^1$

素因数の和:308517

約数の個数: 72

約数和(自身を含む): 2358097560

約数和(自身を除く): 1636233300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 308489, 616978, 925467, 1233956, 1542445, 1850934, 2776401, 3084890, 3701868, 4010357, 4627335, 5552802, 6169780, 8020714, 9254670, 11105604, 12031071, 13882005, 16041428, 18509340, 20051785, 24062142, 27764010, 36093213, 40103570, 48124284, 55528020, 60155355, 72186426, 80207140, 120310710, 144372852, 180466065, 240621420, 360932130, 721864260]

約数ペア:

[(1, 721864260), (2, 360932130), (3, 240621420), (4, 180466065), (5, 144372852), (6, 120310710), (9, 80207140), (10, 72186426), (12, 60155355), (13, 55528020), (15, 48124284), (18, 40103570), (20, 36093213), (26, 27764010), (30, 24062142), (36, 20051785), (39, 18509340), (45, 16041428), (52, 13882005), (60, 12031071), (65, 11105604), (78, 9254670), (90, 8020714), (117, 6169780), (130, 5552802), (156, 4627335), (180, 4010357), (195, 3701868), (234, 3084890), (260, 2776401), (390, 1850934), (468, 1542445), (585, 1233956), (780, 925467), (1170, 616978), (2340, 308489)]