668825655

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 1131356160

約数和(自身を除く): 462530505

約数列:

[1, 3, 5, 15, 43, 61, 89, 129, 183, 191, 215, 267, 305, 445, 573, 645, 915, 955, 1335, 2623, 2865, 3827, 5429, 7869, 8213, 11481, 11651, 13115, 16287, 16999, 19135, 24639, 27145, 34953, 39345, 41065, 50997, 57405, 58255, 81435, 84995, 123195, 174765, 233447, 254985, 500993, 700341, 730957, 1036939, 1167235, 1502979, 2192871, 2504965, 3110817, 3501705, 3654785, 5184695, 7514895, 10964355, 15554085, 44588377, 133765131, 222941885, 668825655]

約数ペア:

[(1, 668825655), (3, 222941885), (5, 133765131), (15, 44588377), (43, 15554085), (61, 10964355), (89, 7514895), (129, 5184695), (183, 3654785), (191, 3501705), (215, 3110817), (267, 2504965), (305, 2192871), (445, 1502979), (573, 1167235), (645, 1036939), (915, 730957), (955, 700341), (1335, 500993), (2623, 254985), (2865, 233447), (3827, 174765), (5429, 123195), (7869, 84995), (8213, 81435), (11481, 58255), (11651, 57405), (13115, 50997), (16287, 41065), (16999, 39345), (19135, 34953), (24639, 27145)]