81825040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:221

約数の個数: 120

約数和(自身を含む): 213736320

約数和(自身を除く): 131911280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 107, 110, 121, 158, 176, 214, 220, 242, 316, 395, 428, 440, 484, 535, 605, 632, 790, 856, 869, 880, 968, 1070, 1177, 1210, 1264, 1580, 1712, 1738, 1936, 2140, 2354, 2420, 3160, 3476, 4280, 4345, 4708, 4840, 5885, 6320, 6952, 8453, 8560, 8690, 9416, 9559, 9680, 11770, 12947, 13904, 16906, 17380, 18832, 19118, 23540, 25894, 33812, 34760, 38236, 42265, 47080, 47795, 51788, 64735, 67624, 69520, 76472, 84530, 92983, 94160, 95590, 103576, 129470, 135248, 152944, 169060, 185966, 191180, 207152, 258940, 338120, 371932, 382360, 464915, 517880, 676240, 743864, 764720, 929830, 1022813, 1035760, 1487728, 1859660, 2045626, 3719320, 4091252, 5114065, 7438640, 8182504, 10228130, 16365008, 20456260, 40912520, 81825040]

約数ペア:

[(1, 81825040), (2, 40912520), (4, 20456260), (5, 16365008), (8, 10228130), (10, 8182504), (11, 7438640), (16, 5114065), (20, 4091252), (22, 3719320), (40, 2045626), (44, 1859660), (55, 1487728), (79, 1035760), (80, 1022813), (88, 929830), (107, 764720), (110, 743864), (121, 676240), (158, 517880), (176, 464915), (214, 382360), (220, 371932), (242, 338120), (316, 258940), (395, 207152), (428, 191180), (440, 185966), (484, 169060), (535, 152944), (605, 135248), (632, 129470), (790, 103576), (856, 95590), (869, 94160), (880, 92983), (968, 84530), (1070, 76472), (1177, 69520), (1210, 67624), (1264, 64735), (1580, 51788), (1712, 47795), (1738, 47080), (1936, 42265), (2140, 38236), (2354, 34760), (2420, 33812), (3160, 25894), (3476, 23540), (4280, 19118), (4345, 18832), (4708, 17380), (4840, 16906), (5885, 13904), (6320, 12947), (6952, 11770), (8453, 9680), (8560, 9559), (8690, 9416)]