2012071720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{72169}}^1$

素因数の和:72238

約数の個数: 64

約数和(自身を含む): 4910446800

約数和(自身を除く): 2898375080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 680, 697, 820, 1394, 1640, 2788, 3485, 5576, 6970, 13940, 27880, 72169, 144338, 288676, 360845, 577352, 721690, 1226873, 1443380, 2453746, 2886760, 2958929, 4907492, 5917858, 6134365, 9814984, 11835716, 12268730, 14794645, 23671432, 24537460, 29589290, 49074920, 50301793, 59178580, 100603586, 118357160, 201207172, 251508965, 402414344, 503017930, 1006035860, 2012071720]

約数ペア:

[(1, 2012071720), (2, 1006035860), (4, 503017930), (5, 402414344), (8, 251508965), (10, 201207172), (17, 118357160), (20, 100603586), (34, 59178580), (40, 50301793), (41, 49074920), (68, 29589290), (82, 24537460), (85, 23671432), (136, 14794645), (164, 12268730), (170, 11835716), (205, 9814984), (328, 6134365), (340, 5917858), (410, 4907492), (680, 2958929), (697, 2886760), (820, 2453746), (1394, 1443380), (1640, 1226873), (2788, 721690), (3485, 577352), (5576, 360845), (6970, 288676), (13940, 144338), (27880, 72169)]