20604379648

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{17783}}^1$

素因数の和:17905

約数の個数: 80

約数和(自身を含む): 43081099776

約数和(自身を除く): 22476720128

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 73, 124, 128, 146, 248, 256, 292, 496, 512, 584, 992, 1168, 1984, 2263, 2336, 3968, 4526, 4672, 7936, 9052, 9344, 15872, 17783, 18104, 18688, 35566, 36208, 37376, 71132, 72416, 142264, 144832, 284528, 289664, 551273, 569056, 579328, 1102546, 1138112, 1158656, 1298159, 2205092, 2276224, 2596318, 4410184, 4552448, 5192636, 8820368, 9104896, 10385272, 17640736, 20770544, 35281472, 40242929, 41541088, 70562944, 80485858, 83082176, 141125888, 160971716, 166164352, 282251776, 321943432, 332328704, 643886864, 664657408, 1287773728, 2575547456, 5151094912, 10302189824, 20604379648]

約数ペア:

[(1, 20604379648), (2, 10302189824), (4, 5151094912), (8, 2575547456), (16, 1287773728), (31, 664657408), (32, 643886864), (62, 332328704), (64, 321943432), (73, 282251776), (124, 166164352), (128, 160971716), (146, 141125888), (248, 83082176), (256, 80485858), (292, 70562944), (496, 41541088), (512, 40242929), (584, 35281472), (992, 20770544), (1168, 17640736), (1984, 10385272), (2263, 9104896), (2336, 8820368), (3968, 5192636), (4526, 4552448), (4672, 4410184), (7936, 2596318), (9052, 2276224), (9344, 2205092), (15872, 1298159), (17783, 1158656), (18104, 1138112), (18688, 1102546), (35566, 579328), (36208, 569056), (37376, 551273), (71132, 289664), (72416, 284528), (142264, 144832)]