405685840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23369}}^1$

素因数の和:23420

約数の個数: 80

約数和(自身を含む): 1112785920

約数和(自身を除く): 707100080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 17360, 23369, 46738, 93476, 116845, 163583, 186952, 233690, 327166, 373904, 467380, 654332, 724439, 817915, 934760, 1308664, 1448878, 1635830, 1869520, 2617328, 2897756, 3271660, 3622195, 5071073, 5795512, 6543320, 7244390, 10142146, 11591024, 13086640, 14488780, 20284292, 25355365, 28977560, 40568584, 50710730, 57955120, 81137168, 101421460, 202842920, 405685840]

約数ペア:

[(1, 405685840), (2, 202842920), (4, 101421460), (5, 81137168), (7, 57955120), (8, 50710730), (10, 40568584), (14, 28977560), (16, 25355365), (20, 20284292), (28, 14488780), (31, 13086640), (35, 11591024), (40, 10142146), (56, 7244390), (62, 6543320), (70, 5795512), (80, 5071073), (112, 3622195), (124, 3271660), (140, 2897756), (155, 2617328), (217, 1869520), (248, 1635830), (280, 1448878), (310, 1308664), (434, 934760), (496, 817915), (560, 724439), (620, 654332), (868, 467380), (1085, 373904), (1240, 327166), (1736, 233690), (2170, 186952), (2480, 163583), (3472, 116845), (4340, 93476), (8680, 46738), (17360, 23369)]