31075240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 85536000

約数和(自身を除く): 54460760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 43, 56, 58, 70, 86, 89, 116, 140, 145, 172, 178, 203, 215, 232, 280, 290, 301, 344, 356, 406, 430, 445, 580, 602, 623, 712, 812, 860, 890, 1015, 1160, 1204, 1246, 1247, 1505, 1624, 1720, 1780, 2030, 2408, 2492, 2494, 2581, 3010, 3115, 3560, 3827, 4060, 4984, 4988, 5162, 6020, 6230, 6235, 7654, 8120, 8729, 9976, 10324, 12040, 12460, 12470, 12905, 15308, 17458, 18067, 19135, 20648, 24920, 24940, 25810, 26789, 30616, 34916, 36134, 38270, 43645, 49880, 51620, 53578, 69832, 72268, 76540, 87290, 90335, 103240, 107156, 110983, 133945, 144536, 153080, 174580, 180670, 214312, 221966, 267890, 349160, 361340, 443932, 535780, 554915, 722680, 776881, 887864, 1071560, 1109830, 1553762, 2219660, 3107524, 3884405, 4439320, 6215048, 7768810, 15537620, 31075240]

約数ペア:

[(1, 31075240), (2, 15537620), (4, 7768810), (5, 6215048), (7, 4439320), (8, 3884405), (10, 3107524), (14, 2219660), (20, 1553762), (28, 1109830), (29, 1071560), (35, 887864), (40, 776881), (43, 722680), (56, 554915), (58, 535780), (70, 443932), (86, 361340), (89, 349160), (116, 267890), (140, 221966), (145, 214312), (172, 180670), (178, 174580), (203, 153080), (215, 144536), (232, 133945), (280, 110983), (290, 107156), (301, 103240), (344, 90335), (356, 87290), (406, 76540), (430, 72268), (445, 69832), (580, 53578), (602, 51620), (623, 49880), (712, 43645), (812, 38270), (860, 36134), (890, 34916), (1015, 30616), (1160, 26789), (1204, 25810), (1246, 24940), (1247, 24920), (1505, 20648), (1624, 19135), (1720, 18067), (1780, 17458), (2030, 15308), (2408, 12905), (2492, 12470), (2494, 12460), (2581, 12040), (3010, 10324), (3115, 9976), (3560, 8729), (3827, 8120), (4060, 7654), (4984, 6235), (4988, 6230), (5162, 6020)]