80205720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{95483}}^1$

素因数の和:95504

約数の個数: 64

約数和(自身を含む): 274993920

約数和(自身を除く): 194788200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 95483, 190966, 286449, 381932, 477415, 572898, 668381, 763864, 954830, 1145796, 1336762, 1432245, 1909660, 2005143, 2291592, 2673524, 2864490, 3341905, 3819320, 4010286, 5347048, 5728980, 6683810, 8020572, 10025715, 11457960, 13367620, 16041144, 20051430, 26735240, 40102860, 80205720]

約数ペア:

[(1, 80205720), (2, 40102860), (3, 26735240), (4, 20051430), (5, 16041144), (6, 13367620), (7, 11457960), (8, 10025715), (10, 8020572), (12, 6683810), (14, 5728980), (15, 5347048), (20, 4010286), (21, 3819320), (24, 3341905), (28, 2864490), (30, 2673524), (35, 2291592), (40, 2005143), (42, 1909660), (56, 1432245), (60, 1336762), (70, 1145796), (84, 954830), (105, 763864), (120, 668381), (140, 572898), (168, 477415), (210, 381932), (280, 286449), (420, 190966), (840, 95483)]