18254060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 44464560

約数和(自身を除く): 26210500

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 397, 418, 484, 605, 794, 836, 1045, 1210, 1588, 1985, 2090, 2299, 2420, 3970, 4180, 4367, 4598, 7543, 7940, 8734, 9196, 11495, 15086, 17468, 21835, 22990, 30172, 37715, 43670, 45980, 48037, 75430, 82973, 87340, 96074, 150860, 165946, 192148, 240185, 331892, 414865, 480370, 829730, 912703, 960740, 1659460, 1825406, 3650812, 4563515, 9127030, 18254060]

約数ペア:

[(1, 18254060), (2, 9127030), (4, 4563515), (5, 3650812), (10, 1825406), (11, 1659460), (19, 960740), (20, 912703), (22, 829730), (38, 480370), (44, 414865), (55, 331892), (76, 240185), (95, 192148), (110, 165946), (121, 150860), (190, 96074), (209, 87340), (220, 82973), (242, 75430), (380, 48037), (397, 45980), (418, 43670), (484, 37715), (605, 30172), (794, 22990), (836, 21835), (1045, 17468), (1210, 15086), (1588, 11495), (1985, 9196), (2090, 8734), (2299, 7940), (2420, 7543), (3970, 4598), (4180, 4367)]