28965720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{34483}}^1$

素因数の和:34504

約数の個数: 64

約数和(自身を含む): 99313920

約数和(自身を除く): 70348200

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, 34483, 68966, 103449, 137932, 172415, 206898, 241381, 275864, 344830, 413796, 482762, 517245, 689660, 724143, 827592, 965524, 1034490, 1206905, 1379320, 1448286, 1931048, 2068980, 2413810, 2896572, 3620715, 4137960, 4827620, 5793144, 7241430, 9655240, 14482860, 28965720]

約数ペア:

[(1, 28965720), (2, 14482860), (3, 9655240), (4, 7241430), (5, 5793144), (6, 4827620), (7, 4137960), (8, 3620715), (10, 2896572), (12, 2413810), (14, 2068980), (15, 1931048), (20, 1448286), (21, 1379320), (24, 1206905), (28, 1034490), (30, 965524), (35, 827592), (40, 724143), (42, 689660), (56, 517245), (60, 482762), (70, 413796), (84, 344830), (105, 275864), (120, 241381), (140, 206898), (168, 172415), (210, 137932), (280, 103449), (420, 68966), (840, 34483)]