65380240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{643}}^1$

素因数の和:728

約数の個数: 80

約数和(自身を含む): 160989696

約数和(自身を除く): 95609456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 496, 620, 643, 656, 820, 1240, 1271, 1286, 1640, 2480, 2542, 2572, 3215, 3280, 5084, 5144, 6355, 6430, 10168, 10288, 12710, 12860, 19933, 20336, 25420, 25720, 26363, 39866, 50840, 51440, 52726, 79732, 99665, 101680, 105452, 131815, 159464, 199330, 210904, 263630, 318928, 398660, 421808, 527260, 797320, 817253, 1054520, 1594640, 1634506, 2109040, 3269012, 4086265, 6538024, 8172530, 13076048, 16345060, 32690120, 65380240]

約数ペア:

[(1, 65380240), (2, 32690120), (4, 16345060), (5, 13076048), (8, 8172530), (10, 6538024), (16, 4086265), (20, 3269012), (31, 2109040), (40, 1634506), (41, 1594640), (62, 1054520), (80, 817253), (82, 797320), (124, 527260), (155, 421808), (164, 398660), (205, 318928), (248, 263630), (310, 210904), (328, 199330), (410, 159464), (496, 131815), (620, 105452), (643, 101680), (656, 99665), (820, 79732), (1240, 52726), (1271, 51440), (1286, 50840), (1640, 39866), (2480, 26363), (2542, 25720), (2572, 25420), (3215, 20336), (3280, 19933), (5084, 12860), (5144, 12710), (6355, 10288), (6430, 10168)]