720831280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{40771}}^1$

素因数の和:40814

約数の個数: 80

約数和(自身を含む): 1911065184

約数和(自身を除く): 1190233904

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 3536, 4420, 8840, 17680, 40771, 81542, 163084, 203855, 326168, 407710, 530023, 652336, 693107, 815420, 1060046, 1386214, 1630840, 2120092, 2650115, 2772428, 3261680, 3465535, 4240184, 5300230, 5544856, 6931070, 8480368, 9010391, 10600460, 11089712, 13862140, 18020782, 21200920, 27724280, 36041564, 42401840, 45051955, 55448560, 72083128, 90103910, 144166256, 180207820, 360415640, 720831280]

約数ペア:

[(1, 720831280), (2, 360415640), (4, 180207820), (5, 144166256), (8, 90103910), (10, 72083128), (13, 55448560), (16, 45051955), (17, 42401840), (20, 36041564), (26, 27724280), (34, 21200920), (40, 18020782), (52, 13862140), (65, 11089712), (68, 10600460), (80, 9010391), (85, 8480368), (104, 6931070), (130, 5544856), (136, 5300230), (170, 4240184), (208, 3465535), (221, 3261680), (260, 2772428), (272, 2650115), (340, 2120092), (442, 1630840), (520, 1386214), (680, 1060046), (884, 815420), (1040, 693107), (1105, 652336), (1360, 530023), (1768, 407710), (2210, 326168), (3536, 203855), (4420, 163084), (8840, 81542), (17680, 40771)]