16601720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 22589320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 106, 164, 191, 205, 212, 265, 328, 382, 410, 424, 530, 764, 820, 955, 1060, 1528, 1640, 1910, 2120, 2173, 3820, 4346, 7640, 7831, 8692, 10123, 10865, 15662, 17384, 20246, 21730, 31324, 39155, 40492, 43460, 50615, 62648, 78310, 80984, 86920, 101230, 156620, 202460, 313240, 404920, 415043, 830086, 1660172, 2075215, 3320344, 4150430, 8300860, 16601720]

約数ペア:

[(1, 16601720), (2, 8300860), (4, 4150430), (5, 3320344), (8, 2075215), (10, 1660172), (20, 830086), (40, 415043), (41, 404920), (53, 313240), (82, 202460), (106, 156620), (164, 101230), (191, 86920), (205, 80984), (212, 78310), (265, 62648), (328, 50615), (382, 43460), (410, 40492), (424, 39155), (530, 31324), (764, 21730), (820, 20246), (955, 17384), (1060, 15662), (1528, 10865), (1640, 10123), (1910, 8692), (2120, 7831), (2173, 7640), (3820, 4346)]