131499520

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1657}}^1$

素因数の和:1711

約数の個数: 80

約数和(自身を含む): 325657728

約数和(自身を除く): 194158208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1657, 1984, 2480, 2560, 3314, 3968, 4960, 6628, 7936, 8285, 9920, 13256, 15872, 16570, 19840, 26512, 33140, 39680, 51367, 53024, 66280, 79360, 102734, 106048, 132560, 205468, 212096, 256835, 265120, 410936, 424192, 513670, 530240, 821872, 848384, 1027340, 1060480, 1643744, 2054680, 2120960, 3287488, 4109360, 4241920, 6574976, 8218720, 13149952, 16437440, 26299904, 32874880, 65749760, 131499520]

約数ペア:

[(1, 131499520), (2, 65749760), (4, 32874880), (5, 26299904), (8, 16437440), (10, 13149952), (16, 8218720), (20, 6574976), (31, 4241920), (32, 4109360), (40, 3287488), (62, 2120960), (64, 2054680), (80, 1643744), (124, 1060480), (128, 1027340), (155, 848384), (160, 821872), (248, 530240), (256, 513670), (310, 424192), (320, 410936), (496, 265120), (512, 256835), (620, 212096), (640, 205468), (992, 132560), (1240, 106048), (1280, 102734), (1657, 79360), (1984, 66280), (2480, 53024), (2560, 51367), (3314, 39680), (3968, 33140), (4960, 26512), (6628, 19840), (7936, 16570), (8285, 15872), (9920, 13256)]