518906668

素因数分解:

$2^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 1080747360

約数和(自身を除く): 561840692

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 151, 178, 196, 197, 302, 356, 394, 604, 623, 788, 1057, 1246, 1379, 2114, 2492, 2758, 4228, 4361, 5516, 7399, 8722, 9653, 13439, 14798, 17444, 17533, 19306, 26878, 29596, 29747, 35066, 38612, 53756, 59494, 70132, 94073, 118988, 122731, 188146, 208229, 245462, 376292, 416458, 490924, 658511, 832916, 859117, 1317022, 1457603, 1718234, 2634044, 2647483, 2915206, 3436468, 5294966, 5830412, 10589932, 18532381, 37064762, 74129524, 129726667, 259453334, 518906668]

約数ペア:

[(1, 518906668), (2, 259453334), (4, 129726667), (7, 74129524), (14, 37064762), (28, 18532381), (49, 10589932), (89, 5830412), (98, 5294966), (151, 3436468), (178, 2915206), (196, 2647483), (197, 2634044), (302, 1718234), (356, 1457603), (394, 1317022), (604, 859117), (623, 832916), (788, 658511), (1057, 490924), (1246, 416458), (1379, 376292), (2114, 245462), (2492, 208229), (2758, 188146), (4228, 122731), (4361, 118988), (5516, 94073), (7399, 70132), (8722, 59494), (9653, 53756), (13439, 38612), (14798, 35066), (17444, 29747), (17533, 29596), (19306, 26878)]