160720040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18181}}^1$

素因数の和:18222

約数の個数: 64

約数和(自身を含む): 412367760

約数和(自身を除く): 251647720

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8840, 18181, 36362, 72724, 90905, 145448, 181810, 236353, 309077, 363620, 472706, 618154, 727240, 945412, 1181765, 1236308, 1545385, 1890824, 2363530, 2472616, 3090770, 4018001, 4727060, 6181540, 8036002, 9454120, 12363080, 16072004, 20090005, 32144008, 40180010, 80360020, 160720040]

約数ペア:

[(1, 160720040), (2, 80360020), (4, 40180010), (5, 32144008), (8, 20090005), (10, 16072004), (13, 12363080), (17, 9454120), (20, 8036002), (26, 6181540), (34, 4727060), (40, 4018001), (52, 3090770), (65, 2472616), (68, 2363530), (85, 1890824), (104, 1545385), (130, 1236308), (136, 1181765), (170, 945412), (221, 727240), (260, 618154), (340, 472706), (442, 363620), (520, 309077), (680, 236353), (884, 181810), (1105, 145448), (1768, 90905), (2210, 72724), (4420, 36362), (8840, 18181)]