18900240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1291}}^1$

素因数の和:1368

約数の個数: 80

約数和(自身を含む): 59597376

約数和(自身を除く): 40697136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 305, 366, 488, 610, 732, 915, 976, 1220, 1291, 1464, 1830, 2440, 2582, 2928, 3660, 3873, 4880, 5164, 6455, 7320, 7746, 10328, 12910, 14640, 15492, 19365, 20656, 25820, 30984, 38730, 51640, 61968, 77460, 78751, 103280, 154920, 157502, 236253, 309840, 315004, 393755, 472506, 630008, 787510, 945012, 1181265, 1260016, 1575020, 1890024, 2362530, 3150040, 3780048, 4725060, 6300080, 9450120, 18900240]

約数ペア:

[(1, 18900240), (2, 9450120), (3, 6300080), (4, 4725060), (5, 3780048), (6, 3150040), (8, 2362530), (10, 1890024), (12, 1575020), (15, 1260016), (16, 1181265), (20, 945012), (24, 787510), (30, 630008), (40, 472506), (48, 393755), (60, 315004), (61, 309840), (80, 236253), (120, 157502), (122, 154920), (183, 103280), (240, 78751), (244, 77460), (305, 61968), (366, 51640), (488, 38730), (610, 30984), (732, 25820), (915, 20656), (976, 19365), (1220, 15492), (1291, 14640), (1464, 12910), (1830, 10328), (2440, 7746), (2582, 7320), (2928, 6455), (3660, 5164), (3873, 4880)]