51290325

素因数分解:

$3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 96845736

約数和(自身を除く): 45555411

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 61, 75, 101, 111, 183, 185, 225, 303, 305, 333, 505, 549, 555, 909, 915, 925, 1515, 1525, 1665, 2257, 2525, 2745, 2775, 3737, 4545, 4575, 6161, 6771, 7575, 8325, 11211, 11285, 13725, 18483, 18685, 20313, 22725, 30805, 33633, 33855, 55449, 56055, 56425, 92415, 93425, 101565, 154025, 168165, 169275, 227957, 277245, 280275, 462075, 507825, 683871, 840825, 1139785, 1386225, 2051613, 3419355, 5698925, 10258065, 17096775, 51290325]

約数ペア:

[(1, 51290325), (3, 17096775), (5, 10258065), (9, 5698925), (15, 3419355), (25, 2051613), (37, 1386225), (45, 1139785), (61, 840825), (75, 683871), (101, 507825), (111, 462075), (183, 280275), (185, 277245), (225, 227957), (303, 169275), (305, 168165), (333, 154025), (505, 101565), (549, 93425), (555, 92415), (909, 56425), (915, 56055), (925, 55449), (1515, 33855), (1525, 33633), (1665, 30805), (2257, 22725), (2525, 20313), (2745, 18685), (2775, 18483), (3737, 13725), (4545, 11285), (4575, 11211), (6161, 8325), (6771, 7575)]