90221440

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2311}}^1$

素因数の和:2391

約数の個数: 64

約数和(自身を含む): 219316320

約数和(自身を除く): 129094880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 976, 1220, 1952, 2311, 2440, 3904, 4622, 4880, 7808, 9244, 9760, 11555, 18488, 19520, 23110, 36976, 39040, 46220, 73952, 92440, 140971, 147904, 184880, 281942, 295808, 369760, 563884, 704855, 739520, 1127768, 1409710, 1479040, 2255536, 2819420, 4511072, 5638840, 9022144, 11277680, 18044288, 22555360, 45110720, 90221440]

約数ペア:

[(1, 90221440), (2, 45110720), (4, 22555360), (5, 18044288), (8, 11277680), (10, 9022144), (16, 5638840), (20, 4511072), (32, 2819420), (40, 2255536), (61, 1479040), (64, 1409710), (80, 1127768), (122, 739520), (128, 704855), (160, 563884), (244, 369760), (305, 295808), (320, 281942), (488, 184880), (610, 147904), (640, 140971), (976, 92440), (1220, 73952), (1952, 46220), (2311, 39040), (2440, 36976), (3904, 23110), (4622, 19520), (4880, 18488), (7808, 11555), (9244, 9760)]