1490400640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1747}}^1$

素因数の和:1840

約数の個数: 128

約数和(自身を含む): 3765611520

約数和(自身を除く): 2275210880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 64, 80, 86, 124, 128, 155, 160, 172, 215, 248, 310, 320, 344, 430, 496, 620, 640, 688, 860, 992, 1240, 1333, 1376, 1720, 1747, 1984, 2480, 2666, 2752, 3440, 3494, 3968, 4960, 5332, 5504, 6665, 6880, 6988, 8735, 9920, 10664, 13330, 13760, 13976, 17470, 19840, 21328, 26660, 27520, 27952, 34940, 42656, 53320, 54157, 55904, 69880, 75121, 85312, 106640, 108314, 111808, 139760, 150242, 170624, 213280, 216628, 223616, 270785, 279520, 300484, 375605, 426560, 433256, 541570, 559040, 600968, 751210, 853120, 866512, 1083140, 1118080, 1201936, 1502420, 1733024, 2166280, 2328751, 2403872, 3004840, 3466048, 4332560, 4657502, 4807744, 6009680, 6932096, 8665120, 9315004, 9615488, 11643755, 12019360, 17330240, 18630008, 23287510, 24038720, 34660480, 37260016, 46575020, 48077440, 74520032, 93150040, 149040064, 186300080, 298080128, 372600160, 745200320, 1490400640]

約数ペア:

[(1, 1490400640), (2, 745200320), (4, 372600160), (5, 298080128), (8, 186300080), (10, 149040064), (16, 93150040), (20, 74520032), (31, 48077440), (32, 46575020), (40, 37260016), (43, 34660480), (62, 24038720), (64, 23287510), (80, 18630008), (86, 17330240), (124, 12019360), (128, 11643755), (155, 9615488), (160, 9315004), (172, 8665120), (215, 6932096), (248, 6009680), (310, 4807744), (320, 4657502), (344, 4332560), (430, 3466048), (496, 3004840), (620, 2403872), (640, 2328751), (688, 2166280), (860, 1733024), (992, 1502420), (1240, 1201936), (1333, 1118080), (1376, 1083140), (1720, 866512), (1747, 853120), (1984, 751210), (2480, 600968), (2666, 559040), (2752, 541570), (3440, 433256), (3494, 426560), (3968, 375605), (4960, 300484), (5332, 279520), (5504, 270785), (6665, 223616), (6880, 216628), (6988, 213280), (8735, 170624), (9920, 150242), (10664, 139760), (13330, 111808), (13760, 108314), (13976, 106640), (17470, 85312), (19840, 75121), (21328, 69880), (26660, 55904), (27520, 54157), (27952, 53320), (34940, 42656)]