121440640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6121}}^1$

素因数の和:6171

約数の個数: 64

約数和(自身を含む): 299733120

約数和(自身を除く): 178292480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 6121, 9920, 12242, 19840, 24484, 30605, 48968, 61210, 97936, 122420, 189751, 195872, 244840, 379502, 391744, 489680, 759004, 783488, 948755, 979360, 1518008, 1897510, 1958720, 3036016, 3795020, 3917440, 6072032, 7590040, 12144064, 15180080, 24288128, 30360160, 60720320, 121440640]

約数ペア:

[(1, 121440640), (2, 60720320), (4, 30360160), (5, 24288128), (8, 15180080), (10, 12144064), (16, 7590040), (20, 6072032), (31, 3917440), (32, 3795020), (40, 3036016), (62, 1958720), (64, 1897510), (80, 1518008), (124, 979360), (128, 948755), (155, 783488), (160, 759004), (248, 489680), (310, 391744), (320, 379502), (496, 244840), (620, 195872), (640, 189751), (992, 122420), (1240, 97936), (1984, 61210), (2480, 48968), (3968, 30605), (4960, 24484), (6121, 19840), (9920, 12242)]