81804660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:214

約数の個数: 192

約数和(自身を含む): 277315584

約数和(自身を除く): 195510924

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 61, 62, 70, 84, 93, 103, 105, 122, 124, 140, 155, 183, 186, 206, 210, 217, 244, 305, 309, 310, 366, 372, 412, 420, 427, 434, 465, 515, 610, 618, 620, 651, 721, 732, 854, 868, 915, 930, 1030, 1085, 1220, 1236, 1281, 1302, 1442, 1545, 1708, 1830, 1860, 1891, 2060, 2135, 2163, 2170, 2562, 2604, 2884, 3090, 3193, 3255, 3605, 3660, 3782, 4270, 4326, 4340, 5124, 5673, 6180, 6283, 6386, 6405, 6510, 7210, 7564, 8540, 8652, 9455, 9579, 10815, 11346, 12566, 12772, 12810, 13020, 13237, 14420, 15965, 18849, 18910, 19158, 21630, 22351, 22692, 25132, 25620, 26474, 28365, 31415, 31930, 37698, 37820, 38316, 39711, 43260, 43981, 44702, 47895, 52948, 56730, 62830, 63860, 66185, 67053, 75396, 79422, 87962, 89404, 94245, 95790, 111755, 113460, 125660, 131943, 132370, 134106, 158844, 175924, 188490, 191580, 194773, 198555, 219905, 223510, 263886, 264740, 268212, 335265, 376980, 389546, 397110, 439810, 447020, 527772, 584319, 659715, 670530, 779092, 794220, 879620, 973865, 1168638, 1319430, 1341060, 1363411, 1947730, 2337276, 2638860, 2726822, 2921595, 3895460, 4090233, 5453644, 5843190, 6817055, 8180466, 11686380, 13634110, 16360932, 20451165, 27268220, 40902330, 81804660]

約数ペア:

[(1, 81804660), (2, 40902330), (3, 27268220), (4, 20451165), (5, 16360932), (6, 13634110), (7, 11686380), (10, 8180466), (12, 6817055), (14, 5843190), (15, 5453644), (20, 4090233), (21, 3895460), (28, 2921595), (30, 2726822), (31, 2638860), (35, 2337276), (42, 1947730), (60, 1363411), (61, 1341060), (62, 1319430), (70, 1168638), (84, 973865), (93, 879620), (103, 794220), (105, 779092), (122, 670530), (124, 659715), (140, 584319), (155, 527772), (183, 447020), (186, 439810), (206, 397110), (210, 389546), (217, 376980), (244, 335265), (305, 268212), (309, 264740), (310, 263886), (366, 223510), (372, 219905), (412, 198555), (420, 194773), (427, 191580), (434, 188490), (465, 175924), (515, 158844), (610, 134106), (618, 132370), (620, 131943), (651, 125660), (721, 113460), (732, 111755), (854, 95790), (868, 94245), (915, 89404), (930, 87962), (1030, 79422), (1085, 75396), (1220, 67053), (1236, 66185), (1281, 63860), (1302, 62830), (1442, 56730), (1545, 52948), (1708, 47895), (1830, 44702), (1860, 43981), (1891, 43260), (2060, 39711), (2135, 38316), (2163, 37820), (2170, 37698), (2562, 31930), (2604, 31415), (2884, 28365), (3090, 26474), (3193, 25620), (3255, 25132), (3605, 22692), (3660, 22351), (3782, 21630), (4270, 19158), (4326, 18910), (4340, 18849), (5124, 15965), (5673, 14420), (6180, 13237), (6283, 13020), (6386, 12810), (6405, 12772), (6510, 12566), (7210, 11346), (7564, 10815), (8540, 9579), (8652, 9455)]