440471780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:274

約数の個数: 144

約数和(自身を含む): 1122460416

約数和(自身を除く): 681988636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 73, 94, 98, 131, 140, 146, 188, 196, 235, 245, 262, 292, 329, 365, 470, 490, 511, 524, 655, 658, 730, 917, 940, 980, 1022, 1310, 1316, 1460, 1645, 1834, 2044, 2303, 2555, 2620, 3290, 3431, 3577, 3668, 4585, 4606, 5110, 6157, 6419, 6580, 6862, 7154, 9170, 9212, 9563, 10220, 11515, 12314, 12838, 13724, 14308, 17155, 17885, 18340, 19126, 23030, 24017, 24628, 25676, 30785, 32095, 34310, 35770, 38252, 43099, 46060, 47815, 48034, 61570, 64190, 66941, 68620, 71540, 86198, 95630, 96068, 120085, 123140, 128380, 133882, 168119, 172396, 191260, 215495, 240170, 267764, 301693, 334705, 336238, 430990, 449461, 468587, 480340, 603386, 669410, 672476, 840595, 861980, 898922, 937174, 1206772, 1338820, 1508465, 1681190, 1797844, 1874348, 2247305, 2342935, 3016930, 3146227, 3362380, 4494610, 4685870, 6033860, 6292454, 8989220, 9371740, 12584908, 15731135, 22023589, 31462270, 44047178, 62924540, 88094356, 110117945, 220235890, 440471780]

約数ペア:

[(1, 440471780), (2, 220235890), (4, 110117945), (5, 88094356), (7, 62924540), (10, 44047178), (14, 31462270), (20, 22023589), (28, 15731135), (35, 12584908), (47, 9371740), (49, 8989220), (70, 6292454), (73, 6033860), (94, 4685870), (98, 4494610), (131, 3362380), (140, 3146227), (146, 3016930), (188, 2342935), (196, 2247305), (235, 1874348), (245, 1797844), (262, 1681190), (292, 1508465), (329, 1338820), (365, 1206772), (470, 937174), (490, 898922), (511, 861980), (524, 840595), (655, 672476), (658, 669410), (730, 603386), (917, 480340), (940, 468587), (980, 449461), (1022, 430990), (1310, 336238), (1316, 334705), (1460, 301693), (1645, 267764), (1834, 240170), (2044, 215495), (2303, 191260), (2555, 172396), (2620, 168119), (3290, 133882), (3431, 128380), (3577, 123140), (3668, 120085), (4585, 96068), (4606, 95630), (5110, 86198), (6157, 71540), (6419, 68620), (6580, 66941), (6862, 64190), (7154, 61570), (9170, 48034), (9212, 47815), (9563, 46060), (10220, 43099), (11515, 38252), (12314, 35770), (12838, 34310), (13724, 32095), (14308, 30785), (17155, 25676), (17885, 24628), (18340, 24017), (19126, 23030)]