83951720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{857}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 197683200

約数和(自身を除く): 113731480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 248, 310, 316, 395, 620, 632, 790, 857, 1240, 1580, 1714, 2449, 3160, 3428, 4285, 4898, 6856, 8570, 9796, 12245, 17140, 19592, 24490, 26567, 34280, 48980, 53134, 67703, 97960, 106268, 132835, 135406, 212536, 265670, 270812, 338515, 531340, 541624, 677030, 1062680, 1354060, 2098793, 2708120, 4197586, 8395172, 10493965, 16790344, 20987930, 41975860, 83951720]

約数ペア:

[(1, 83951720), (2, 41975860), (4, 20987930), (5, 16790344), (8, 10493965), (10, 8395172), (20, 4197586), (31, 2708120), (40, 2098793), (62, 1354060), (79, 1062680), (124, 677030), (155, 541624), (158, 531340), (248, 338515), (310, 270812), (316, 265670), (395, 212536), (620, 135406), (632, 132835), (790, 106268), (857, 97960), (1240, 67703), (1580, 53134), (1714, 48980), (2449, 34280), (3160, 26567), (3428, 24490), (4285, 19592), (4898, 17140), (6856, 12245), (8570, 9796)]