18200540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{269}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 40824000

約数和(自身を除く): 22623460

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 269, 340, 398, 538, 796, 995, 1076, 1345, 1990, 2690, 3383, 3980, 4573, 5380, 6766, 9146, 13532, 16915, 18292, 22865, 33830, 45730, 53531, 67660, 91460, 107062, 214124, 267655, 535310, 910027, 1070620, 1820054, 3640108, 4550135, 9100270, 18200540]

約数ペア:

[(1, 18200540), (2, 9100270), (4, 4550135), (5, 3640108), (10, 1820054), (17, 1070620), (20, 910027), (34, 535310), (68, 267655), (85, 214124), (170, 107062), (199, 91460), (269, 67660), (340, 53531), (398, 45730), (538, 33830), (796, 22865), (995, 18292), (1076, 16915), (1345, 13532), (1990, 9146), (2690, 6766), (3383, 5380), (3980, 4573)]