81381510

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:520

約数の個数: 160

約数和(自身を含む): 258711552

約数和(自身を除く): 177330042

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 54, 62, 63, 70, 81, 90, 93, 105, 126, 135, 155, 162, 186, 189, 210, 217, 270, 279, 310, 315, 378, 405, 434, 463, 465, 558, 567, 630, 651, 810, 837, 926, 930, 945, 1085, 1134, 1302, 1389, 1395, 1674, 1890, 1953, 2170, 2315, 2511, 2778, 2790, 2835, 3241, 3255, 3906, 4167, 4185, 4630, 5022, 5670, 5859, 6482, 6510, 6945, 8334, 8370, 9723, 9765, 11718, 12501, 12555, 13890, 14353, 16205, 17577, 19446, 19530, 20835, 25002, 25110, 28706, 29169, 29295, 32410, 35154, 37503, 41670, 43059, 48615, 58338, 58590, 62505, 71765, 75006, 86118, 87507, 87885, 97230, 100471, 125010, 129177, 143530, 145845, 175014, 175770, 187515, 200942, 215295, 258354, 262521, 291690, 301413, 375030, 387531, 430590, 437535, 502355, 525042, 602826, 645885, 775062, 875070, 904239, 1004710, 1162593, 1291770, 1312605, 1507065, 1808478, 1937655, 2325186, 2625210, 2712717, 3014130, 3875310, 4521195, 5425434, 5812965, 8138151, 9042390, 11625930, 13563585, 16276302, 27127170, 40690755, 81381510]

約数ペア:

[(1, 81381510), (2, 40690755), (3, 27127170), (5, 16276302), (6, 13563585), (7, 11625930), (9, 9042390), (10, 8138151), (14, 5812965), (15, 5425434), (18, 4521195), (21, 3875310), (27, 3014130), (30, 2712717), (31, 2625210), (35, 2325186), (42, 1937655), (45, 1808478), (54, 1507065), (62, 1312605), (63, 1291770), (70, 1162593), (81, 1004710), (90, 904239), (93, 875070), (105, 775062), (126, 645885), (135, 602826), (155, 525042), (162, 502355), (186, 437535), (189, 430590), (210, 387531), (217, 375030), (270, 301413), (279, 291690), (310, 262521), (315, 258354), (378, 215295), (405, 200942), (434, 187515), (463, 175770), (465, 175014), (558, 145845), (567, 143530), (630, 129177), (651, 125010), (810, 100471), (837, 97230), (926, 87885), (930, 87507), (945, 86118), (1085, 75006), (1134, 71765), (1302, 62505), (1389, 58590), (1395, 58338), (1674, 48615), (1890, 43059), (1953, 41670), (2170, 37503), (2315, 35154), (2511, 32410), (2778, 29295), (2790, 29169), (2835, 28706), (3241, 25110), (3255, 25002), (3906, 20835), (4167, 19530), (4185, 19446), (4630, 17577), (5022, 16205), (5670, 14353), (5859, 13890), (6482, 12555), (6510, 12501), (6945, 11718), (8334, 9765), (8370, 9723)]