20161728748

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1031}}^1\times {\mathrm{5869}}^1$

素因数の和:6935

約数の個数: 72

約数和(自身を含む): 43507406880

約数和(自身を除く): 23345678132

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 476, 833, 1031, 1666, 2062, 3332, 4124, 5869, 7217, 11738, 14434, 17527, 23476, 28868, 35054, 41083, 50519, 70108, 82166, 99773, 101038, 122689, 164332, 199546, 202076, 245378, 287581, 399092, 490756, 575162, 698411, 858823, 1150324, 1396822, 1717646, 2793644, 3435292, 4888877, 6050939, 9777754, 12101878, 19555508, 24203756, 42356573, 84713146, 102865963, 169426292, 205731926, 296496011, 411463852, 592992022, 720061741, 1185984044, 1440123482, 2880246964, 5040432187, 10080864374, 20161728748]

約数ペア:

[(1, 20161728748), (2, 10080864374), (4, 5040432187), (7, 2880246964), (14, 1440123482), (17, 1185984044), (28, 720061741), (34, 592992022), (49, 411463852), (68, 296496011), (98, 205731926), (119, 169426292), (196, 102865963), (238, 84713146), (476, 42356573), (833, 24203756), (1031, 19555508), (1666, 12101878), (2062, 9777754), (3332, 6050939), (4124, 4888877), (5869, 3435292), (7217, 2793644), (11738, 1717646), (14434, 1396822), (17527, 1150324), (23476, 858823), (28868, 698411), (35054, 575162), (41083, 490756), (50519, 399092), (70108, 287581), (82166, 245378), (99773, 202076), (101038, 199546), (122689, 164332)]