71382220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{431}}^1$

素因数の和:480

約数の個数: 108

約数和(自身を含む): 189260064

約数和(自身を除く): 117877844

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 169, 182, 196, 245, 260, 338, 364, 431, 455, 490, 637, 676, 845, 862, 910, 980, 1183, 1274, 1690, 1724, 1820, 2155, 2366, 2548, 3017, 3185, 3380, 4310, 4732, 5603, 5915, 6034, 6370, 8281, 8620, 11206, 11830, 12068, 12740, 15085, 16562, 21119, 22412, 23660, 28015, 30170, 33124, 39221, 41405, 42238, 56030, 60340, 72839, 78442, 82810, 84476, 105595, 112060, 145678, 156884, 165620, 196105, 211190, 274547, 291356, 364195, 392210, 422380, 509873, 549094, 728390, 784420, 1019746, 1098188, 1372735, 1456780, 2039492, 2549365, 2745470, 3569111, 5098730, 5490940, 7138222, 10197460, 14276444, 17845555, 35691110, 71382220]

約数ペア:

[(1, 71382220), (2, 35691110), (4, 17845555), (5, 14276444), (7, 10197460), (10, 7138222), (13, 5490940), (14, 5098730), (20, 3569111), (26, 2745470), (28, 2549365), (35, 2039492), (49, 1456780), (52, 1372735), (65, 1098188), (70, 1019746), (91, 784420), (98, 728390), (130, 549094), (140, 509873), (169, 422380), (182, 392210), (196, 364195), (245, 291356), (260, 274547), (338, 211190), (364, 196105), (431, 165620), (455, 156884), (490, 145678), (637, 112060), (676, 105595), (845, 84476), (862, 82810), (910, 78442), (980, 72839), (1183, 60340), (1274, 56030), (1690, 42238), (1724, 41405), (1820, 39221), (2155, 33124), (2366, 30170), (2548, 28015), (3017, 23660), (3185, 22412), (3380, 21119), (4310, 16562), (4732, 15085), (5603, 12740), (5915, 12068), (6034, 11830), (6370, 11206), (8281, 8620)]