18938400

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{607}}^1$

素因数の和:643

約数の個数: 144

約数和(自身を含む): 66495744

約数和(自身を除く): 47557344

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 65, 75, 78, 80, 96, 100, 104, 120, 130, 150, 156, 160, 195, 200, 208, 240, 260, 300, 312, 325, 390, 400, 416, 480, 520, 600, 607, 624, 650, 780, 800, 975, 1040, 1200, 1214, 1248, 1300, 1560, 1821, 1950, 2080, 2400, 2428, 2600, 3035, 3120, 3642, 3900, 4856, 5200, 6070, 6240, 7284, 7800, 7891, 9105, 9712, 10400, 12140, 14568, 15175, 15600, 15782, 18210, 19424, 23673, 24280, 29136, 30350, 31200, 31564, 36420, 39455, 45525, 47346, 48560, 58272, 60700, 63128, 72840, 78910, 91050, 94692, 97120, 118365, 121400, 126256, 145680, 157820, 182100, 189384, 197275, 236730, 242800, 252512, 291360, 315640, 364200, 378768, 394550, 473460, 485600, 591825, 631280, 728400, 757536, 789100, 946920, 1183650, 1262560, 1456800, 1578200, 1893840, 2367300, 3156400, 3787680, 4734600, 6312800, 9469200, 18938400]

約数ペア:

[(1, 18938400), (2, 9469200), (3, 6312800), (4, 4734600), (5, 3787680), (6, 3156400), (8, 2367300), (10, 1893840), (12, 1578200), (13, 1456800), (15, 1262560), (16, 1183650), (20, 946920), (24, 789100), (25, 757536), (26, 728400), (30, 631280), (32, 591825), (39, 485600), (40, 473460), (48, 394550), (50, 378768), (52, 364200), (60, 315640), (65, 291360), (75, 252512), (78, 242800), (80, 236730), (96, 197275), (100, 189384), (104, 182100), (120, 157820), (130, 145680), (150, 126256), (156, 121400), (160, 118365), (195, 97120), (200, 94692), (208, 91050), (240, 78910), (260, 72840), (300, 63128), (312, 60700), (325, 58272), (390, 48560), (400, 47346), (416, 45525), (480, 39455), (520, 36420), (600, 31564), (607, 31200), (624, 30350), (650, 29136), (780, 24280), (800, 23673), (975, 19424), (1040, 18210), (1200, 15782), (1214, 15600), (1248, 15175), (1300, 14568), (1560, 12140), (1821, 10400), (1950, 9712), (2080, 9105), (2400, 7891), (2428, 7800), (2600, 7284), (3035, 6240), (3120, 6070), (3642, 5200), (3900, 4856)]