231913980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:488

約数の個数: 144

約数和(自身を含む): 729630720

約数和(自身を除く): 497716740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 79, 90, 94, 141, 158, 180, 188, 235, 237, 282, 316, 347, 395, 423, 470, 474, 564, 694, 705, 711, 790, 846, 940, 948, 1041, 1185, 1388, 1410, 1422, 1580, 1692, 1735, 2082, 2115, 2370, 2820, 2844, 3123, 3470, 3555, 3713, 4164, 4230, 4740, 5205, 6246, 6940, 7110, 7426, 8460, 10410, 11139, 12492, 14220, 14852, 15615, 16309, 18565, 20820, 22278, 27413, 31230, 32618, 33417, 37130, 44556, 48927, 54826, 55695, 62460, 65236, 66834, 74260, 81545, 82239, 97854, 109652, 111390, 133668, 137065, 146781, 163090, 164478, 167085, 195708, 222780, 244635, 246717, 274130, 293562, 326180, 328956, 334170, 411195, 489270, 493434, 548260, 587124, 668340, 733905, 822390, 978540, 986868, 1233585, 1288411, 1467810, 1644780, 2467170, 2576822, 2935620, 3865233, 4934340, 5153644, 6442055, 7730466, 11595699, 12884110, 15460932, 19326165, 23191398, 25768220, 38652330, 46382796, 57978495, 77304660, 115956990, 231913980]

約数ペア:

[(1, 231913980), (2, 115956990), (3, 77304660), (4, 57978495), (5, 46382796), (6, 38652330), (9, 25768220), (10, 23191398), (12, 19326165), (15, 15460932), (18, 12884110), (20, 11595699), (30, 7730466), (36, 6442055), (45, 5153644), (47, 4934340), (60, 3865233), (79, 2935620), (90, 2576822), (94, 2467170), (141, 1644780), (158, 1467810), (180, 1288411), (188, 1233585), (235, 986868), (237, 978540), (282, 822390), (316, 733905), (347, 668340), (395, 587124), (423, 548260), (470, 493434), (474, 489270), (564, 411195), (694, 334170), (705, 328956), (711, 326180), (790, 293562), (846, 274130), (940, 246717), (948, 244635), (1041, 222780), (1185, 195708), (1388, 167085), (1410, 164478), (1422, 163090), (1580, 146781), (1692, 137065), (1735, 133668), (2082, 111390), (2115, 109652), (2370, 97854), (2820, 82239), (2844, 81545), (3123, 74260), (3470, 66834), (3555, 65236), (3713, 62460), (4164, 55695), (4230, 54826), (4740, 48927), (5205, 44556), (6246, 37130), (6940, 33417), (7110, 32618), (7426, 31230), (8460, 27413), (10410, 22278), (11139, 20820), (12492, 18565), (14220, 16309), (14852, 15615)]