18564910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{887}}^1$

素因数の和:937

約数の個数: 64

約数和(自身を含む): 42964992

約数和(自身を除く): 24400082

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 35, 46, 65, 70, 91, 115, 130, 161, 182, 230, 299, 322, 455, 598, 805, 887, 910, 1495, 1610, 1774, 2093, 2990, 4186, 4435, 6209, 8870, 10465, 11531, 12418, 20401, 20930, 23062, 31045, 40802, 57655, 62090, 80717, 102005, 115310, 142807, 161434, 204010, 265213, 285614, 403585, 530426, 714035, 807170, 1326065, 1428070, 1856491, 2652130, 3712982, 9282455, 18564910]

約数ペア:

[(1, 18564910), (2, 9282455), (5, 3712982), (7, 2652130), (10, 1856491), (13, 1428070), (14, 1326065), (23, 807170), (26, 714035), (35, 530426), (46, 403585), (65, 285614), (70, 265213), (91, 204010), (115, 161434), (130, 142807), (161, 115310), (182, 102005), (230, 80717), (299, 62090), (322, 57655), (455, 40802), (598, 31045), (805, 23062), (887, 20930), (910, 20401), (1495, 12418), (1610, 11531), (1774, 10465), (2093, 8870), (2990, 6209), (4186, 4435)]