68421340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:719

約数の個数: 72

約数和(自身を含む): 160852608

約数和(自身を除く): 92431268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 653, 676, 806, 845, 1306, 1612, 1690, 2015, 2612, 3265, 3380, 4030, 5239, 6530, 8060, 8489, 10478, 13060, 16978, 20243, 20956, 26195, 33956, 40486, 42445, 52390, 80972, 84890, 101215, 104780, 110357, 169780, 202430, 220714, 263159, 404860, 441428, 526318, 551785, 1052636, 1103570, 1315795, 2207140, 2631590, 3421067, 5263180, 6842134, 13684268, 17105335, 34210670, 68421340]

約数ペア:

[(1, 68421340), (2, 34210670), (4, 17105335), (5, 13684268), (10, 6842134), (13, 5263180), (20, 3421067), (26, 2631590), (31, 2207140), (52, 1315795), (62, 1103570), (65, 1052636), (124, 551785), (130, 526318), (155, 441428), (169, 404860), (260, 263159), (310, 220714), (338, 202430), (403, 169780), (620, 110357), (653, 104780), (676, 101215), (806, 84890), (845, 80972), (1306, 52390), (1612, 42445), (1690, 40486), (2015, 33956), (2612, 26195), (3265, 20956), (3380, 20243), (4030, 16978), (5239, 13060), (6530, 10478), (8060, 8489)]