21996243340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{4091}}^1$

素因数の和:4303

約数の個数: 96

約数和(自身を含む): 48506895360

約数和(自身を除く): 26510652020

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 83, 158, 164, 166, 205, 316, 332, 395, 410, 415, 790, 820, 830, 1580, 1660, 3239, 3403, 4091, 6478, 6557, 6806, 8182, 12956, 13114, 13612, 16195, 16364, 17015, 20455, 26228, 32390, 32785, 34030, 40910, 64780, 65570, 68060, 81820, 131140, 167731, 268837, 323189, 335462, 339553, 537674, 646378, 670924, 679106, 838655, 1075348, 1292756, 1344185, 1358212, 1615945, 1677310, 1697765, 2688370, 3231890, 3354620, 3395530, 5376740, 6463780, 6791060, 13250749, 13921673, 26501498, 26824687, 27843346, 53002996, 53649374, 55686692, 66253745, 69608365, 107298748, 132507490, 134123435, 139216730, 265014980, 268246870, 278433460, 536493740, 1099812167, 2199624334, 4399248668, 5499060835, 10998121670, 21996243340]

約数ペア:

[(1, 21996243340), (2, 10998121670), (4, 5499060835), (5, 4399248668), (10, 2199624334), (20, 1099812167), (41, 536493740), (79, 278433460), (82, 268246870), (83, 265014980), (158, 139216730), (164, 134123435), (166, 132507490), (205, 107298748), (316, 69608365), (332, 66253745), (395, 55686692), (410, 53649374), (415, 53002996), (790, 27843346), (820, 26824687), (830, 26501498), (1580, 13921673), (1660, 13250749), (3239, 6791060), (3403, 6463780), (4091, 5376740), (6478, 3395530), (6557, 3354620), (6806, 3231890), (8182, 2688370), (12956, 1697765), (13114, 1677310), (13612, 1615945), (16195, 1358212), (16364, 1344185), (17015, 1292756), (20455, 1075348), (26228, 838655), (32390, 679106), (32785, 670924), (34030, 646378), (40910, 537674), (64780, 339553), (65570, 335462), (68060, 323189), (81820, 268837), (131140, 167731)]