640978912

素因数分解:

$2^5\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{983}}^1$

素因数の和:1112

約数の個数: 96

約数和(自身を含む): 1499710464

約数和(自身を除く): 858731552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 71, 82, 112, 142, 164, 224, 284, 287, 328, 497, 568, 574, 656, 983, 994, 1136, 1148, 1312, 1966, 1988, 2272, 2296, 2911, 3932, 3976, 4592, 5822, 6881, 7864, 7952, 9184, 11644, 13762, 15728, 15904, 20377, 23288, 27524, 31456, 40303, 40754, 46576, 55048, 69793, 80606, 81508, 93152, 110096, 139586, 161212, 163016, 220192, 279172, 282121, 322424, 326032, 488551, 558344, 564242, 644848, 652064, 977102, 1116688, 1128484, 1289696, 1954204, 2233376, 2256968, 2861513, 3908408, 4513936, 5723026, 7816816, 9027872, 11446052, 15633632, 20030591, 22892104, 40061182, 45784208, 80122364, 91568416, 160244728, 320489456, 640978912]

約数ペア:

[(1, 640978912), (2, 320489456), (4, 160244728), (7, 91568416), (8, 80122364), (14, 45784208), (16, 40061182), (28, 22892104), (32, 20030591), (41, 15633632), (56, 11446052), (71, 9027872), (82, 7816816), (112, 5723026), (142, 4513936), (164, 3908408), (224, 2861513), (284, 2256968), (287, 2233376), (328, 1954204), (497, 1289696), (568, 1128484), (574, 1116688), (656, 977102), (983, 652064), (994, 644848), (1136, 564242), (1148, 558344), (1312, 488551), (1966, 326032), (1988, 322424), (2272, 282121), (2296, 279172), (2911, 220192), (3932, 163016), (3976, 161212), (4592, 139586), (5822, 110096), (6881, 93152), (7864, 81508), (7952, 80606), (9184, 69793), (11644, 55048), (13762, 46576), (15728, 40754), (15904, 40303), (20377, 31456), (23288, 27524)]