399702160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{34939}}^1$

素因数の和:34976

約数の個数: 80

約数和(自身を含む): 1091805120

約数和(自身を除く): 692102960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2860, 5720, 11440, 34939, 69878, 139756, 174695, 279512, 349390, 384329, 454207, 559024, 698780, 768658, 908414, 1397560, 1537316, 1816828, 1921645, 2271035, 2795120, 3074632, 3633656, 3843290, 4542070, 4996277, 6149264, 7267312, 7686580, 9084140, 9992554, 15373160, 18168280, 19985108, 24981385, 30746320, 36336560, 39970216, 49962770, 79940432, 99925540, 199851080, 399702160]

約数ペア:

[(1, 399702160), (2, 199851080), (4, 99925540), (5, 79940432), (8, 49962770), (10, 39970216), (11, 36336560), (13, 30746320), (16, 24981385), (20, 19985108), (22, 18168280), (26, 15373160), (40, 9992554), (44, 9084140), (52, 7686580), (55, 7267312), (65, 6149264), (80, 4996277), (88, 4542070), (104, 3843290), (110, 3633656), (130, 3074632), (143, 2795120), (176, 2271035), (208, 1921645), (220, 1816828), (260, 1537316), (286, 1397560), (440, 908414), (520, 768658), (572, 698780), (715, 559024), (880, 454207), (1040, 384329), (1144, 349390), (1430, 279512), (2288, 174695), (2860, 139756), (5720, 69878), (11440, 34939)]