281017100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{30881}}^1$

素因数の和:30915

約数の個数: 72

約数和(自身を含む): 750556128

約数和(自身を除く): 469539028

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2275, 4550, 9100, 30881, 61762, 123524, 154405, 216167, 308810, 401453, 432334, 617620, 772025, 802906, 864668, 1080835, 1544050, 1605812, 2007265, 2161670, 2810171, 3088100, 4014530, 4323340, 5404175, 5620342, 8029060, 10036325, 10808350, 11240684, 14050855, 20072650, 21616700, 28101710, 40145300, 56203420, 70254275, 140508550, 281017100]

約数ペア:

[(1, 281017100), (2, 140508550), (4, 70254275), (5, 56203420), (7, 40145300), (10, 28101710), (13, 21616700), (14, 20072650), (20, 14050855), (25, 11240684), (26, 10808350), (28, 10036325), (35, 8029060), (50, 5620342), (52, 5404175), (65, 4323340), (70, 4014530), (91, 3088100), (100, 2810171), (130, 2161670), (140, 2007265), (175, 1605812), (182, 1544050), (260, 1080835), (325, 864668), (350, 802906), (364, 772025), (455, 617620), (650, 432334), (700, 401453), (910, 308810), (1300, 216167), (1820, 154405), (2275, 123524), (4550, 61762), (9100, 30881)]