488489820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{12781}}^1$

素因数の和:12820

約数の個数: 144

約数和(自身を含む): 1713606048

約数和(自身を除く): 1225116228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 780, 910, 980, 1092, 1274, 1365, 1470, 1820, 1911, 2548, 2730, 2940, 3185, 3822, 5460, 6370, 7644, 9555, 12740, 12781, 19110, 25562, 38220, 38343, 51124, 63905, 76686, 89467, 127810, 153372, 166153, 178934, 191715, 255620, 268401, 332306, 357868, 383430, 447335, 498459, 536802, 626269, 664612, 766860, 830765, 894670, 996918, 1073604, 1163071, 1252538, 1342005, 1661530, 1789340, 1878807, 1993836, 2326142, 2492295, 2505076, 2684010, 3131345, 3323060, 3489213, 3757614, 4652284, 4984590, 5368020, 5815355, 6262690, 6978426, 7515228, 8141497, 9394035, 9969180, 11630710, 12525380, 13956852, 16282994, 17446065, 18788070, 23261420, 24424491, 32565988, 34892130, 37576140, 40707485, 48848982, 69784260, 81414970, 97697964, 122122455, 162829940, 244244910, 488489820]

約数ペア:

[(1, 488489820), (2, 244244910), (3, 162829940), (4, 122122455), (5, 97697964), (6, 81414970), (7, 69784260), (10, 48848982), (12, 40707485), (13, 37576140), (14, 34892130), (15, 32565988), (20, 24424491), (21, 23261420), (26, 18788070), (28, 17446065), (30, 16282994), (35, 13956852), (39, 12525380), (42, 11630710), (49, 9969180), (52, 9394035), (60, 8141497), (65, 7515228), (70, 6978426), (78, 6262690), (84, 5815355), (91, 5368020), (98, 4984590), (105, 4652284), (130, 3757614), (140, 3489213), (147, 3323060), (156, 3131345), (182, 2684010), (195, 2505076), (196, 2492295), (210, 2326142), (245, 1993836), (260, 1878807), (273, 1789340), (294, 1661530), (364, 1342005), (390, 1252538), (420, 1163071), (455, 1073604), (490, 996918), (546, 894670), (588, 830765), (637, 766860), (735, 664612), (780, 626269), (910, 536802), (980, 498459), (1092, 447335), (1274, 383430), (1365, 357868), (1470, 332306), (1820, 268401), (1911, 255620), (2548, 191715), (2730, 178934), (2940, 166153), (3185, 153372), (3822, 127810), (5460, 89467), (6370, 76686), (7644, 63905), (9555, 51124), (12740, 38343), (12781, 38220), (19110, 25562)]