180655420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{3929}}^1$

素因数の和:3979

約数の個数: 72

約数和(自身を含む): 439059600

約数和(自身を除く): 258404180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 484, 605, 836, 1045, 1210, 2090, 2299, 2420, 3929, 4180, 4598, 7858, 9196, 11495, 15716, 19645, 22990, 39290, 43219, 45980, 74651, 78580, 86438, 149302, 172876, 216095, 298604, 373255, 432190, 475409, 746510, 821161, 864380, 950818, 1493020, 1642322, 1901636, 2377045, 3284644, 4105805, 4754090, 8211610, 9032771, 9508180, 16423220, 18065542, 36131084, 45163855, 90327710, 180655420]

約数ペア:

[(1, 180655420), (2, 90327710), (4, 45163855), (5, 36131084), (10, 18065542), (11, 16423220), (19, 9508180), (20, 9032771), (22, 8211610), (38, 4754090), (44, 4105805), (55, 3284644), (76, 2377045), (95, 1901636), (110, 1642322), (121, 1493020), (190, 950818), (209, 864380), (220, 821161), (242, 746510), (380, 475409), (418, 432190), (484, 373255), (605, 298604), (836, 216095), (1045, 172876), (1210, 149302), (2090, 86438), (2299, 78580), (2420, 74651), (3929, 45980), (4180, 43219), (4598, 39290), (7858, 22990), (9196, 19645), (11495, 15716)]