155807860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1487}}^1$

素因数の和:1553

約数の個数: 72

約数和(自身を含む): 365976576

約数和(自身を除く): 210168716

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 806, 845, 1487, 1612, 1690, 2015, 2974, 3380, 4030, 5239, 5948, 7435, 8060, 10478, 14870, 19331, 20956, 26195, 29740, 38662, 46097, 52390, 77324, 92194, 96655, 104780, 184388, 193310, 230485, 251303, 386620, 460970, 502606, 599261, 921940, 1005212, 1198522, 1256515, 2397044, 2513030, 2996305, 5026060, 5992610, 7790393, 11985220, 15580786, 31161572, 38951965, 77903930, 155807860]

約数ペア:

[(1, 155807860), (2, 77903930), (4, 38951965), (5, 31161572), (10, 15580786), (13, 11985220), (20, 7790393), (26, 5992610), (31, 5026060), (52, 2996305), (62, 2513030), (65, 2397044), (124, 1256515), (130, 1198522), (155, 1005212), (169, 921940), (260, 599261), (310, 502606), (338, 460970), (403, 386620), (620, 251303), (676, 230485), (806, 193310), (845, 184388), (1487, 104780), (1612, 96655), (1690, 92194), (2015, 77324), (2974, 52390), (3380, 46097), (4030, 38662), (5239, 29740), (5948, 26195), (7435, 20956), (8060, 19331), (10478, 14870)]