321572920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 789719040

約数和(自身を除く): 468146120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 43, 62, 74, 86, 124, 148, 155, 163, 172, 185, 215, 248, 296, 310, 326, 344, 370, 430, 620, 652, 740, 815, 860, 1147, 1240, 1304, 1333, 1480, 1591, 1630, 1720, 2294, 2666, 3182, 3260, 4588, 5053, 5332, 5735, 6031, 6364, 6520, 6665, 7009, 7955, 9176, 10106, 10664, 11470, 12062, 12728, 13330, 14018, 15910, 20212, 22940, 24124, 25265, 26660, 28036, 30155, 31820, 35045, 40424, 45880, 48248, 49321, 50530, 53320, 56072, 60310, 63640, 70090, 98642, 101060, 120620, 140180, 186961, 197284, 202120, 217279, 241240, 246605, 259333, 280360, 373922, 394568, 434558, 493210, 518666, 747844, 869116, 934805, 986420, 1037332, 1086395, 1296665, 1495688, 1738232, 1869610, 1972840, 2074664, 2172790, 2593330, 3739220, 4345580, 5186660, 7478440, 8039323, 8691160, 10373320, 16078646, 32157292, 40196615, 64314584, 80393230, 160786460, 321572920]

約数ペア:

[(1, 321572920), (2, 160786460), (4, 80393230), (5, 64314584), (8, 40196615), (10, 32157292), (20, 16078646), (31, 10373320), (37, 8691160), (40, 8039323), (43, 7478440), (62, 5186660), (74, 4345580), (86, 3739220), (124, 2593330), (148, 2172790), (155, 2074664), (163, 1972840), (172, 1869610), (185, 1738232), (215, 1495688), (248, 1296665), (296, 1086395), (310, 1037332), (326, 986420), (344, 934805), (370, 869116), (430, 747844), (620, 518666), (652, 493210), (740, 434558), (815, 394568), (860, 373922), (1147, 280360), (1240, 259333), (1304, 246605), (1333, 241240), (1480, 217279), (1591, 202120), (1630, 197284), (1720, 186961), (2294, 140180), (2666, 120620), (3182, 101060), (3260, 98642), (4588, 70090), (5053, 63640), (5332, 60310), (5735, 56072), (6031, 53320), (6364, 50530), (6520, 49321), (6665, 48248), (7009, 45880), (7955, 40424), (9176, 35045), (10106, 31820), (10664, 30155), (11470, 28036), (12062, 26660), (12728, 25265), (13330, 24124), (14018, 22940), (15910, 20212)]