640710

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{113}}^1$

素因数の和:139

約数の個数: 80

約数和(自身を含む): 1986336

約数和(自身を除く): 1345626

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 113, 126, 135, 162, 189, 210, 226, 270, 315, 339, 378, 405, 565, 567, 630, 678, 791, 810, 945, 1017, 1130, 1134, 1582, 1695, 1890, 2034, 2373, 2835, 3051, 3390, 3955, 4746, 5085, 5670, 6102, 7119, 7910, 9153, 10170, 11865, 14238, 15255, 18306, 21357, 23730, 30510, 35595, 42714, 45765, 64071, 71190, 91530, 106785, 128142, 213570, 320355, 640710]

約数ペア:

[(1, 640710), (2, 320355), (3, 213570), (5, 128142), (6, 106785), (7, 91530), (9, 71190), (10, 64071), (14, 45765), (15, 42714), (18, 35595), (21, 30510), (27, 23730), (30, 21357), (35, 18306), (42, 15255), (45, 14238), (54, 11865), (63, 10170), (70, 9153), (81, 7910), (90, 7119), (105, 6102), (113, 5670), (126, 5085), (135, 4746), (162, 3955), (189, 3390), (210, 3051), (226, 2835), (270, 2373), (315, 2034), (339, 1890), (378, 1695), (405, 1582), (565, 1134), (567, 1130), (630, 1017), (678, 945), (791, 810)]