19855500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 192

約数和(自身を含む): 69328896

約数和(自身を除く): 49473396

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 31, 35, 42, 50, 60, 61, 62, 70, 75, 84, 93, 100, 105, 122, 124, 125, 140, 150, 155, 175, 183, 186, 210, 217, 244, 250, 300, 305, 310, 350, 366, 372, 375, 420, 427, 434, 465, 500, 525, 610, 620, 651, 700, 732, 750, 775, 854, 868, 875, 915, 930, 1050, 1085, 1220, 1281, 1302, 1500, 1525, 1550, 1708, 1750, 1830, 1860, 1891, 2100, 2135, 2170, 2325, 2562, 2604, 2625, 3050, 3100, 3255, 3500, 3660, 3782, 3875, 4270, 4340, 4575, 4650, 5124, 5250, 5425, 5673, 6100, 6405, 6510, 7564, 7625, 7750, 8540, 9150, 9300, 9455, 10500, 10675, 10850, 11346, 11625, 12810, 13020, 13237, 15250, 15500, 16275, 18300, 18910, 21350, 21700, 22692, 22875, 23250, 25620, 26474, 27125, 28365, 30500, 32025, 32550, 37820, 39711, 42700, 45750, 46500, 47275, 52948, 53375, 54250, 56730, 64050, 65100, 66185, 79422, 81375, 91500, 94550, 106750, 108500, 113460, 128100, 132370, 141825, 158844, 160125, 162750, 189100, 198555, 213500, 236375, 264740, 283650, 320250, 325500, 330925, 397110, 472750, 567300, 640500, 661850, 709125, 794220, 945500, 992775, 1323700, 1418250, 1654625, 1985550, 2836500, 3309250, 3971100, 4963875, 6618500, 9927750, 19855500]

約数ペア:

[(1, 19855500), (2, 9927750), (3, 6618500), (4, 4963875), (5, 3971100), (6, 3309250), (7, 2836500), (10, 1985550), (12, 1654625), (14, 1418250), (15, 1323700), (20, 992775), (21, 945500), (25, 794220), (28, 709125), (30, 661850), (31, 640500), (35, 567300), (42, 472750), (50, 397110), (60, 330925), (61, 325500), (62, 320250), (70, 283650), (75, 264740), (84, 236375), (93, 213500), (100, 198555), (105, 189100), (122, 162750), (124, 160125), (125, 158844), (140, 141825), (150, 132370), (155, 128100), (175, 113460), (183, 108500), (186, 106750), (210, 94550), (217, 91500), (244, 81375), (250, 79422), (300, 66185), (305, 65100), (310, 64050), (350, 56730), (366, 54250), (372, 53375), (375, 52948), (420, 47275), (427, 46500), (434, 45750), (465, 42700), (500, 39711), (525, 37820), (610, 32550), (620, 32025), (651, 30500), (700, 28365), (732, 27125), (750, 26474), (775, 25620), (854, 23250), (868, 22875), (875, 22692), (915, 21700), (930, 21350), (1050, 18910), (1085, 18300), (1220, 16275), (1281, 15500), (1302, 15250), (1500, 13237), (1525, 13020), (1550, 12810), (1708, 11625), (1750, 11346), (1830, 10850), (1860, 10675), (1891, 10500), (2100, 9455), (2135, 9300), (2170, 9150), (2325, 8540), (2562, 7750), (2604, 7625), (2625, 7564), (3050, 6510), (3100, 6405), (3255, 6100), (3500, 5673), (3660, 5425), (3782, 5250), (3875, 5124), (4270, 4650), (4340, 4575)]