81404636

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 164997504

約数和(自身を除く): 83592868

約数列:

[1, 2, 4, 17, 23, 31, 34, 46, 62, 68, 73, 92, 124, 146, 292, 391, 527, 529, 713, 782, 1054, 1058, 1241, 1426, 1564, 1679, 2108, 2116, 2263, 2482, 2852, 3358, 4526, 4964, 6716, 8993, 9052, 12121, 16399, 17986, 24242, 28543, 32798, 35972, 38471, 38617, 48484, 52049, 57086, 65596, 76942, 77234, 104098, 114172, 153884, 154468, 208196, 278783, 557566, 656489, 884833, 1115132, 1197127, 1312978, 1769666, 2394254, 2625956, 3539332, 4788508, 20351159, 40702318, 81404636]

約数ペア:

[(1, 81404636), (2, 40702318), (4, 20351159), (17, 4788508), (23, 3539332), (31, 2625956), (34, 2394254), (46, 1769666), (62, 1312978), (68, 1197127), (73, 1115132), (92, 884833), (124, 656489), (146, 557566), (292, 278783), (391, 208196), (527, 154468), (529, 153884), (713, 114172), (782, 104098), (1054, 77234), (1058, 76942), (1241, 65596), (1426, 57086), (1564, 52049), (1679, 48484), (2108, 38617), (2116, 38471), (2263, 35972), (2482, 32798), (2852, 28543), (3358, 24242), (4526, 17986), (4964, 16399), (6716, 12121), (8993, 9052)]