31408020

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{1187}}^1$

素因数の和:1219

約数の個数: 144

約数和(自身を含む): 113762880

約数和(自身を除く): 82354860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1187, 1260, 1323, 1470, 1764, 1890, 2205, 2374, 2646, 2940, 3561, 3780, 4410, 4748, 5292, 5935, 6615, 7122, 8309, 8820, 10683, 11870, 13230, 14244, 16618, 17805, 21366, 23740, 24927, 26460, 32049, 33236, 35610, 41545, 42732, 49854, 53415, 58163, 64098, 71220, 74781, 83090, 99708, 106830, 116326, 124635, 128196, 149562, 160245, 166180, 174489, 213660, 224343, 232652, 249270, 290815, 299124, 320490, 348978, 373905, 448686, 498540, 523467, 581630, 640980, 697956, 747810, 872445, 897372, 1046934, 1121715, 1163260, 1495620, 1570401, 1744890, 2093868, 2243430, 2617335, 3140802, 3489780, 4486860, 5234670, 6281604, 7852005, 10469340, 15704010, 31408020]

約数ペア:

[(1, 31408020), (2, 15704010), (3, 10469340), (4, 7852005), (5, 6281604), (6, 5234670), (7, 4486860), (9, 3489780), (10, 3140802), (12, 2617335), (14, 2243430), (15, 2093868), (18, 1744890), (20, 1570401), (21, 1495620), (27, 1163260), (28, 1121715), (30, 1046934), (35, 897372), (36, 872445), (42, 747810), (45, 697956), (49, 640980), (54, 581630), (60, 523467), (63, 498540), (70, 448686), (84, 373905), (90, 348978), (98, 320490), (105, 299124), (108, 290815), (126, 249270), (135, 232652), (140, 224343), (147, 213660), (180, 174489), (189, 166180), (196, 160245), (210, 149562), (245, 128196), (252, 124635), (270, 116326), (294, 106830), (315, 99708), (378, 83090), (420, 74781), (441, 71220), (490, 64098), (540, 58163), (588, 53415), (630, 49854), (735, 42732), (756, 41545), (882, 35610), (945, 33236), (980, 32049), (1187, 26460), (1260, 24927), (1323, 23740), (1470, 21366), (1764, 17805), (1890, 16618), (2205, 14244), (2374, 13230), (2646, 11870), (2940, 10683), (3561, 8820), (3780, 8309), (4410, 7122), (4748, 6615), (5292, 5935)]