68729980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 178246656

約数和(自身を除く): 109516676

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 23, 34, 44, 46, 47, 55, 68, 85, 92, 94, 110, 115, 170, 187, 188, 220, 230, 235, 253, 289, 340, 374, 391, 460, 470, 506, 517, 578, 748, 782, 799, 935, 940, 1012, 1034, 1081, 1156, 1265, 1445, 1564, 1598, 1870, 1955, 2068, 2162, 2530, 2585, 2890, 3179, 3196, 3740, 3910, 3995, 4301, 4324, 5060, 5170, 5405, 5780, 6358, 6647, 7820, 7990, 8602, 8789, 10340, 10810, 11891, 12716, 13294, 13583, 15895, 15980, 17204, 17578, 18377, 21505, 21620, 23782, 26588, 27166, 31790, 33235, 35156, 36754, 43010, 43945, 47564, 54332, 59455, 63580, 66470, 67915, 73117, 73508, 86020, 87890, 91885, 118910, 132940, 135830, 146234, 149413, 175780, 183770, 202147, 237820, 271660, 292468, 298826, 312409, 365585, 367540, 404294, 597652, 624818, 731170, 747065, 808588, 1010735, 1249636, 1462340, 1494130, 1562045, 2021470, 2988260, 3124090, 3436499, 4042940, 6248180, 6872998, 13745996, 17182495, 34364990, 68729980]

約数ペア:

[(1, 68729980), (2, 34364990), (4, 17182495), (5, 13745996), (10, 6872998), (11, 6248180), (17, 4042940), (20, 3436499), (22, 3124090), (23, 2988260), (34, 2021470), (44, 1562045), (46, 1494130), (47, 1462340), (55, 1249636), (68, 1010735), (85, 808588), (92, 747065), (94, 731170), (110, 624818), (115, 597652), (170, 404294), (187, 367540), (188, 365585), (220, 312409), (230, 298826), (235, 292468), (253, 271660), (289, 237820), (340, 202147), (374, 183770), (391, 175780), (460, 149413), (470, 146234), (506, 135830), (517, 132940), (578, 118910), (748, 91885), (782, 87890), (799, 86020), (935, 73508), (940, 73117), (1012, 67915), (1034, 66470), (1081, 63580), (1156, 59455), (1265, 54332), (1445, 47564), (1564, 43945), (1598, 43010), (1870, 36754), (1955, 35156), (2068, 33235), (2162, 31790), (2530, 27166), (2585, 26588), (2890, 23782), (3179, 21620), (3196, 21505), (3740, 18377), (3910, 17578), (3995, 17204), (4301, 15980), (4324, 15895), (5060, 13583), (5170, 13294), (5405, 12716), (5780, 11891), (6358, 10810), (6647, 10340), (7820, 8789), (7990, 8602)]