681449860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{601}}^1$

素因数の和:726

約数の個数: 144

約数和(自身を含む): 1815896880

約数和(自身を除く): 1134447020

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 89, 91, 98, 130, 140, 178, 182, 196, 245, 260, 356, 364, 445, 455, 490, 601, 623, 637, 890, 910, 980, 1157, 1202, 1246, 1274, 1780, 1820, 2314, 2404, 2492, 2548, 3005, 3115, 3185, 4207, 4361, 4628, 5785, 6010, 6230, 6370, 7813, 8099, 8414, 8722, 11570, 12020, 12460, 12740, 15626, 16198, 16828, 17444, 21035, 21805, 23140, 29449, 31252, 32396, 39065, 40495, 42070, 43610, 53489, 54691, 56693, 58898, 78130, 80990, 84140, 87220, 106978, 109382, 113386, 117796, 147245, 156260, 161980, 213956, 218764, 226772, 267445, 273455, 283465, 294490, 374423, 382837, 534890, 546910, 566930, 588980, 695357, 748846, 765674, 1069780, 1093820, 1133860, 1390714, 1497692, 1531348, 1872115, 1914185, 2620961, 2781428, 3476785, 3744230, 3828370, 4867499, 5241922, 6953570, 7488460, 7656740, 9734998, 10483844, 13104805, 13907140, 19469996, 24337495, 26209610, 34072493, 48674990, 52419220, 68144986, 97349980, 136289972, 170362465, 340724930, 681449860]

約数ペア:

[(1, 681449860), (2, 340724930), (4, 170362465), (5, 136289972), (7, 97349980), (10, 68144986), (13, 52419220), (14, 48674990), (20, 34072493), (26, 26209610), (28, 24337495), (35, 19469996), (49, 13907140), (52, 13104805), (65, 10483844), (70, 9734998), (89, 7656740), (91, 7488460), (98, 6953570), (130, 5241922), (140, 4867499), (178, 3828370), (182, 3744230), (196, 3476785), (245, 2781428), (260, 2620961), (356, 1914185), (364, 1872115), (445, 1531348), (455, 1497692), (490, 1390714), (601, 1133860), (623, 1093820), (637, 1069780), (890, 765674), (910, 748846), (980, 695357), (1157, 588980), (1202, 566930), (1246, 546910), (1274, 534890), (1780, 382837), (1820, 374423), (2314, 294490), (2404, 283465), (2492, 273455), (2548, 267445), (3005, 226772), (3115, 218764), (3185, 213956), (4207, 161980), (4361, 156260), (4628, 147245), (5785, 117796), (6010, 113386), (6230, 109382), (6370, 106978), (7813, 87220), (8099, 84140), (8414, 80990), (8722, 78130), (11570, 58898), (12020, 56693), (12460, 54691), (12740, 53489), (15626, 43610), (16198, 42070), (16828, 40495), (17444, 39065), (21035, 32396), (21805, 31252), (23140, 29449)]