81714620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7309}}^1$

素因数の和:7374

約数の個数: 48

約数和(自身を含む): 189124320

約数和(自身を除く): 107409700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 7309, 11180, 14618, 29236, 36545, 73090, 95017, 146180, 190034, 314287, 380068, 475085, 628574, 950170, 1257148, 1571435, 1900340, 3142870, 4085731, 6285740, 8171462, 16342924, 20428655, 40857310, 81714620]

約数ペア:

[(1, 81714620), (2, 40857310), (4, 20428655), (5, 16342924), (10, 8171462), (13, 6285740), (20, 4085731), (26, 3142870), (43, 1900340), (52, 1571435), (65, 1257148), (86, 950170), (130, 628574), (172, 475085), (215, 380068), (260, 314287), (430, 190034), (559, 146180), (860, 95017), (1118, 73090), (2236, 36545), (2795, 29236), (5590, 14618), (7309, 11180)]