31581580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3203}}^1$

素因数の和:3258

約数の個数: 48

約数和(自身を含む): 72666720

約数和(自身を除く): 41085140

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 2465, 3203, 4930, 6406, 9860, 12812, 16015, 32030, 54451, 64060, 92887, 108902, 185774, 217804, 272255, 371548, 464435, 544510, 928870, 1089020, 1579079, 1857740, 3158158, 6316316, 7895395, 15790790, 31581580]

約数ペア:

[(1, 31581580), (2, 15790790), (4, 7895395), (5, 6316316), (10, 3158158), (17, 1857740), (20, 1579079), (29, 1089020), (34, 928870), (58, 544510), (68, 464435), (85, 371548), (116, 272255), (145, 217804), (170, 185774), (290, 108902), (340, 92887), (493, 64060), (580, 54451), (986, 32030), (1972, 16015), (2465, 12812), (3203, 9860), (4930, 6406)]