18894720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{757}}^1$

素因数の和:792

約数の個数: 128

約数和(自身を含む): 64945440

約数和(自身を除く): 46050720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 757, 780, 832, 960, 1040, 1248, 1514, 1560, 1664, 1920, 2080, 2271, 2496, 3028, 3120, 3785, 4160, 4542, 4992, 6056, 6240, 7570, 8320, 9084, 9841, 11355, 12112, 12480, 15140, 18168, 19682, 22710, 24224, 24960, 29523, 30280, 36336, 39364, 45420, 48448, 49205, 59046, 60560, 72672, 78728, 90840, 96896, 98410, 118092, 121120, 145344, 147615, 157456, 181680, 196820, 236184, 242240, 290688, 295230, 314912, 363360, 393640, 472368, 484480, 590460, 629824, 726720, 787280, 944736, 1180920, 1259648, 1453440, 1574560, 1889472, 2361840, 3149120, 3778944, 4723680, 6298240, 9447360, 18894720]

約数ペア:

[(1, 18894720), (2, 9447360), (3, 6298240), (4, 4723680), (5, 3778944), (6, 3149120), (8, 2361840), (10, 1889472), (12, 1574560), (13, 1453440), (15, 1259648), (16, 1180920), (20, 944736), (24, 787280), (26, 726720), (30, 629824), (32, 590460), (39, 484480), (40, 472368), (48, 393640), (52, 363360), (60, 314912), (64, 295230), (65, 290688), (78, 242240), (80, 236184), (96, 196820), (104, 181680), (120, 157456), (128, 147615), (130, 145344), (156, 121120), (160, 118092), (192, 98410), (195, 96896), (208, 90840), (240, 78728), (260, 72672), (312, 60560), (320, 59046), (384, 49205), (390, 48448), (416, 45420), (480, 39364), (520, 36336), (624, 30280), (640, 29523), (757, 24960), (780, 24224), (832, 22710), (960, 19682), (1040, 18168), (1248, 15140), (1514, 12480), (1560, 12112), (1664, 11355), (1920, 9841), (2080, 9084), (2271, 8320), (2496, 7570), (3028, 6240), (3120, 6056), (3785, 4992), (4160, 4542)]