20135220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{251}}^1$

素因数の和:461

約数の個数: 96

約数和(自身を含む): 65028096

約数和(自身を除く): 44892876

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 191, 210, 251, 382, 420, 502, 573, 753, 764, 955, 1004, 1146, 1255, 1337, 1506, 1757, 1910, 2292, 2510, 2674, 2865, 3012, 3514, 3765, 3820, 4011, 5020, 5271, 5348, 5730, 6685, 7028, 7530, 8022, 8785, 10542, 11460, 13370, 15060, 16044, 17570, 20055, 21084, 26355, 26740, 35140, 40110, 47941, 52710, 80220, 95882, 105420, 143823, 191764, 239705, 287646, 335587, 479410, 575292, 671174, 719115, 958820, 1006761, 1342348, 1438230, 1677935, 2013522, 2876460, 3355870, 4027044, 5033805, 6711740, 10067610, 20135220]

約数ペア:

[(1, 20135220), (2, 10067610), (3, 6711740), (4, 5033805), (5, 4027044), (6, 3355870), (7, 2876460), (10, 2013522), (12, 1677935), (14, 1438230), (15, 1342348), (20, 1006761), (21, 958820), (28, 719115), (30, 671174), (35, 575292), (42, 479410), (60, 335587), (70, 287646), (84, 239705), (105, 191764), (140, 143823), (191, 105420), (210, 95882), (251, 80220), (382, 52710), (420, 47941), (502, 40110), (573, 35140), (753, 26740), (764, 26355), (955, 21084), (1004, 20055), (1146, 17570), (1255, 16044), (1337, 15060), (1506, 13370), (1757, 11460), (1910, 10542), (2292, 8785), (2510, 8022), (2674, 7530), (2865, 7028), (3012, 6685), (3514, 5730), (3765, 5348), (3820, 5271), (4011, 5020)]