87220120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4091}}^1$

素因数の和:4156

約数の個数: 64

約数和(自身を含む): 216548640

約数和(自身を除く): 129328520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 1066, 1640, 2132, 2665, 4091, 4264, 5330, 8182, 10660, 16364, 20455, 21320, 32728, 40910, 53183, 81820, 106366, 163640, 167731, 212732, 265915, 335462, 425464, 531830, 670924, 838655, 1063660, 1341848, 1677310, 2127320, 2180503, 3354620, 4361006, 6709240, 8722012, 10902515, 17444024, 21805030, 43610060, 87220120]

約数ペア:

[(1, 87220120), (2, 43610060), (4, 21805030), (5, 17444024), (8, 10902515), (10, 8722012), (13, 6709240), (20, 4361006), (26, 3354620), (40, 2180503), (41, 2127320), (52, 1677310), (65, 1341848), (82, 1063660), (104, 838655), (130, 670924), (164, 531830), (205, 425464), (260, 335462), (328, 265915), (410, 212732), (520, 167731), (533, 163640), (820, 106366), (1066, 81820), (1640, 53183), (2132, 40910), (2665, 32728), (4091, 21320), (4264, 20455), (5330, 16364), (8182, 10660)]