81505544720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{888247}}^1$

素因数の和:888328

約数の個数: 80

約数和(自身を含む): 200900379648

約数和(自身を除く): 119394834928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 37, 40, 62, 74, 80, 124, 148, 155, 185, 248, 296, 310, 370, 496, 592, 620, 740, 1147, 1240, 1480, 2294, 2480, 2960, 4588, 5735, 9176, 11470, 18352, 22940, 45880, 91760, 888247, 1776494, 3552988, 4441235, 7105976, 8882470, 14211952, 17764940, 27535657, 32865139, 35529880, 55071314, 65730278, 71059760, 110142628, 131460556, 137678285, 164325695, 220285256, 262921112, 275356570, 328651390, 440570512, 525842224, 550713140, 657302780, 1018819309, 1101426280, 1314605560, 2037638618, 2202852560, 2629211120, 4075277236, 5094096545, 8150554472, 10188193090, 16301108944, 20376386180, 40752772360, 81505544720]

約数ペア:

[(1, 81505544720), (2, 40752772360), (4, 20376386180), (5, 16301108944), (8, 10188193090), (10, 8150554472), (16, 5094096545), (20, 4075277236), (31, 2629211120), (37, 2202852560), (40, 2037638618), (62, 1314605560), (74, 1101426280), (80, 1018819309), (124, 657302780), (148, 550713140), (155, 525842224), (185, 440570512), (248, 328651390), (296, 275356570), (310, 262921112), (370, 220285256), (496, 164325695), (592, 137678285), (620, 131460556), (740, 110142628), (1147, 71059760), (1240, 65730278), (1480, 55071314), (2294, 35529880), (2480, 32865139), (2960, 27535657), (4588, 17764940), (5735, 14211952), (9176, 8882470), (11470, 7105976), (18352, 4441235), (22940, 3552988), (45880, 1776494), (91760, 888247)]