18423460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:385

約数の個数: 72

約数和(自身を含む): 44509248

約数和(自身を除く): 26085788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 242, 253, 331, 460, 484, 506, 605, 662, 1012, 1210, 1265, 1324, 1655, 2420, 2530, 2783, 3310, 3641, 5060, 5566, 6620, 7282, 7613, 11132, 13915, 14564, 15226, 18205, 27830, 30452, 36410, 38065, 40051, 55660, 72820, 76130, 80102, 83743, 152260, 160204, 167486, 200255, 334972, 400510, 418715, 801020, 837430, 921173, 1674860, 1842346, 3684692, 4605865, 9211730, 18423460]

約数ペア:

[(1, 18423460), (2, 9211730), (4, 4605865), (5, 3684692), (10, 1842346), (11, 1674860), (20, 921173), (22, 837430), (23, 801020), (44, 418715), (46, 400510), (55, 334972), (92, 200255), (110, 167486), (115, 160204), (121, 152260), (220, 83743), (230, 80102), (242, 76130), (253, 72820), (331, 55660), (460, 40051), (484, 38065), (506, 36410), (605, 30452), (662, 27830), (1012, 18205), (1210, 15226), (1265, 14564), (1324, 13915), (1655, 11132), (2420, 7613), (2530, 7282), (2783, 6620), (3310, 5566), (3641, 5060)]