38905180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 89123328

約数和(自身を除く): 50218148

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 127, 170, 212, 254, 265, 289, 340, 508, 530, 578, 635, 901, 1060, 1156, 1270, 1445, 1802, 2159, 2540, 2890, 3604, 4318, 4505, 5780, 6731, 8636, 9010, 10795, 13462, 15317, 18020, 21590, 26924, 30634, 33655, 36703, 43180, 61268, 67310, 73406, 76585, 114427, 134620, 146812, 153170, 183515, 228854, 306340, 367030, 457708, 572135, 734060, 1144270, 1945259, 2288540, 3890518, 7781036, 9726295, 19452590, 38905180]

約数ペア:

[(1, 38905180), (2, 19452590), (4, 9726295), (5, 7781036), (10, 3890518), (17, 2288540), (20, 1945259), (34, 1144270), (53, 734060), (68, 572135), (85, 457708), (106, 367030), (127, 306340), (170, 228854), (212, 183515), (254, 153170), (265, 146812), (289, 134620), (340, 114427), (508, 76585), (530, 73406), (578, 67310), (635, 61268), (901, 43180), (1060, 36703), (1156, 33655), (1270, 30634), (1445, 26924), (1802, 21590), (2159, 18020), (2540, 15317), (2890, 13462), (3604, 10795), (4318, 9010), (4505, 8636), (5780, 6731)]