21304828080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{405343}}^1$

素因数の和:405435

約数の個数: 120

約数和(自身を含む): 72529012608

約数和(自身を除く): 51224184528

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, 73, 80, 90, 120, 144, 146, 180, 219, 240, 292, 360, 365, 438, 584, 657, 720, 730, 876, 1095, 1168, 1314, 1460, 1752, 2190, 2628, 2920, 3285, 3504, 4380, 5256, 5840, 6570, 8760, 10512, 13140, 17520, 26280, 52560, 405343, 810686, 1216029, 1621372, 2026715, 2432058, 3242744, 3648087, 4053430, 4864116, 6080145, 6485488, 7296174, 8106860, 9728232, 12160290, 14592348, 16213720, 18240435, 19456464, 24320580, 29184696, 29590039, 32427440, 36480870, 48641160, 58369392, 59180078, 72961740, 88770117, 97282320, 118360156, 145923480, 147950195, 177540234, 236720312, 266310351, 291846960, 295900390, 355080468, 443850585, 473440624, 532620702, 591800780, 710160936, 887701170, 1065241404, 1183601560, 1331551755, 1420321872, 1775402340, 2130482808, 2367203120, 2663103510, 3550804680, 4260965616, 5326207020, 7101609360, 10652414040, 21304828080]

約数ペア:

[(1, 21304828080), (2, 10652414040), (3, 7101609360), (4, 5326207020), (5, 4260965616), (6, 3550804680), (8, 2663103510), (9, 2367203120), (10, 2130482808), (12, 1775402340), (15, 1420321872), (16, 1331551755), (18, 1183601560), (20, 1065241404), (24, 887701170), (30, 710160936), (36, 591800780), (40, 532620702), (45, 473440624), (48, 443850585), (60, 355080468), (72, 295900390), (73, 291846960), (80, 266310351), (90, 236720312), (120, 177540234), (144, 147950195), (146, 145923480), (180, 118360156), (219, 97282320), (240, 88770117), (292, 72961740), (360, 59180078), (365, 58369392), (438, 48641160), (584, 36480870), (657, 32427440), (720, 29590039), (730, 29184696), (876, 24320580), (1095, 19456464), (1168, 18240435), (1314, 16213720), (1460, 14592348), (1752, 12160290), (2190, 9728232), (2628, 8106860), (2920, 7296174), (3285, 6485488), (3504, 6080145), (4380, 4864116), (5256, 4053430), (5840, 3648087), (6570, 3242744), (8760, 2432058), (10512, 2026715), (13140, 1621372), (17520, 1216029), (26280, 810686), (52560, 405343)]