398557320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{769}}^1$

素因数の和:1407

約数の個数: 128

約数和(自身を含む): 1370476800

約数和(自身を除く): 971919480

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, 617, 769, 840, 1234, 1538, 1851, 2307, 2468, 3076, 3085, 3702, 3845, 4319, 4614, 4936, 5383, 6152, 6170, 7404, 7690, 8638, 9228, 9255, 10766, 11535, 12340, 12957, 14808, 15380, 16149, 17276, 18456, 18510, 21532, 21595, 23070, 24680, 25914, 26915, 30760, 32298, 34552, 37020, 43064, 43190, 46140, 51828, 53830, 64596, 64785, 74040, 80745, 86380, 92280, 103656, 107660, 129192, 129570, 161490, 172760, 215320, 259140, 322980, 474473, 518280, 645960, 948946, 1423419, 1897892, 2372365, 2846838, 3321311, 3795784, 4744730, 5693676, 6642622, 7117095, 9489460, 9963933, 11387352, 13285244, 14234190, 16606555, 18978920, 19927866, 26570488, 28468380, 33213110, 39855732, 49819665, 56936760, 66426220, 79711464, 99639330, 132852440, 199278660, 398557320]

約数ペア:

[(1, 398557320), (2, 199278660), (3, 132852440), (4, 99639330), (5, 79711464), (6, 66426220), (7, 56936760), (8, 49819665), (10, 39855732), (12, 33213110), (14, 28468380), (15, 26570488), (20, 19927866), (21, 18978920), (24, 16606555), (28, 14234190), (30, 13285244), (35, 11387352), (40, 9963933), (42, 9489460), (56, 7117095), (60, 6642622), (70, 5693676), (84, 4744730), (105, 3795784), (120, 3321311), (140, 2846838), (168, 2372365), (210, 1897892), (280, 1423419), (420, 948946), (617, 645960), (769, 518280), (840, 474473), (1234, 322980), (1538, 259140), (1851, 215320), (2307, 172760), (2468, 161490), (3076, 129570), (3085, 129192), (3702, 107660), (3845, 103656), (4319, 92280), (4614, 86380), (4936, 80745), (5383, 74040), (6152, 64785), (6170, 64596), (7404, 53830), (7690, 51828), (8638, 46140), (9228, 43190), (9255, 43064), (10766, 37020), (11535, 34552), (12340, 32298), (12957, 30760), (14808, 26915), (15380, 25914), (16149, 24680), (17276, 23070), (18456, 21595), (18510, 21532)]