20490330

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:340

約数の個数: 96

約数和(自身を含む): 58506624

約数和(自身を除く): 38016294

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 53, 70, 98, 105, 106, 147, 159, 210, 245, 263, 265, 294, 318, 371, 490, 526, 530, 735, 742, 789, 795, 1113, 1315, 1470, 1578, 1590, 1841, 1855, 2226, 2597, 2630, 3682, 3710, 3945, 5194, 5523, 5565, 7791, 7890, 9205, 11046, 11130, 12887, 12985, 13939, 15582, 18410, 25774, 25970, 27615, 27878, 38661, 38955, 41817, 55230, 64435, 69695, 77322, 77910, 83634, 97573, 128870, 139390, 193305, 195146, 209085, 292719, 386610, 418170, 487865, 585438, 683011, 975730, 1366022, 1463595, 2049033, 2927190, 3415055, 4098066, 6830110, 10245165, 20490330]

約数ペア:

[(1, 20490330), (2, 10245165), (3, 6830110), (5, 4098066), (6, 3415055), (7, 2927190), (10, 2049033), (14, 1463595), (15, 1366022), (21, 975730), (30, 683011), (35, 585438), (42, 487865), (49, 418170), (53, 386610), (70, 292719), (98, 209085), (105, 195146), (106, 193305), (147, 139390), (159, 128870), (210, 97573), (245, 83634), (263, 77910), (265, 77322), (294, 69695), (318, 64435), (371, 55230), (490, 41817), (526, 38955), (530, 38661), (735, 27878), (742, 27615), (789, 25970), (795, 25774), (1113, 18410), (1315, 15582), (1470, 13939), (1578, 12985), (1590, 12887), (1841, 11130), (1855, 11046), (2226, 9205), (2597, 7890), (2630, 7791), (3682, 5565), (3710, 5523), (3945, 5194)]