81808800

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:495

約数の個数: 144

約数和(自身を含む): 269982720

約数和(自身を除く): 188173920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 75, 80, 89, 96, 100, 120, 150, 160, 178, 200, 240, 267, 300, 356, 383, 400, 445, 480, 534, 600, 712, 766, 800, 890, 1068, 1149, 1200, 1335, 1424, 1532, 1780, 1915, 2136, 2225, 2298, 2400, 2670, 2848, 3064, 3560, 3830, 4272, 4450, 4596, 5340, 5745, 6128, 6675, 7120, 7660, 8544, 8900, 9192, 9575, 10680, 11490, 12256, 13350, 14240, 15320, 17800, 18384, 19150, 21360, 22980, 26700, 28725, 30640, 34087, 35600, 36768, 38300, 42720, 45960, 53400, 57450, 61280, 68174, 71200, 76600, 91920, 102261, 106800, 114900, 136348, 153200, 170435, 183840, 204522, 213600, 229800, 272696, 306400, 340870, 409044, 459600, 511305, 545392, 681740, 818088, 852175, 919200, 1022610, 1090784, 1363480, 1636176, 1704350, 2045220, 2556525, 2726960, 3272352, 3408700, 4090440, 5113050, 5453920, 6817400, 8180880, 10226100, 13634800, 16361760, 20452200, 27269600, 40904400, 81808800]

約数ペア:

[(1, 81808800), (2, 40904400), (3, 27269600), (4, 20452200), (5, 16361760), (6, 13634800), (8, 10226100), (10, 8180880), (12, 6817400), (15, 5453920), (16, 5113050), (20, 4090440), (24, 3408700), (25, 3272352), (30, 2726960), (32, 2556525), (40, 2045220), (48, 1704350), (50, 1636176), (60, 1363480), (75, 1090784), (80, 1022610), (89, 919200), (96, 852175), (100, 818088), (120, 681740), (150, 545392), (160, 511305), (178, 459600), (200, 409044), (240, 340870), (267, 306400), (300, 272696), (356, 229800), (383, 213600), (400, 204522), (445, 183840), (480, 170435), (534, 153200), (600, 136348), (712, 114900), (766, 106800), (800, 102261), (890, 91920), (1068, 76600), (1149, 71200), (1200, 68174), (1335, 61280), (1424, 57450), (1532, 53400), (1780, 45960), (1915, 42720), (2136, 38300), (2225, 36768), (2298, 35600), (2400, 34087), (2670, 30640), (2848, 28725), (3064, 26700), (3560, 22980), (3830, 21360), (4272, 19150), (4450, 18384), (4596, 17800), (5340, 15320), (5745, 14240), (6128, 13350), (6675, 12256), (7120, 11490), (7660, 10680), (8544, 9575), (8900, 9192)]