161790147155

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{677}}^1\times {\mathrm{16943}}^1$

素因数の和:17676

約数の個数: 64

約数和(自身を含む): 247038640128

約数和(自身を除く): 85248492973

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 677, 1085, 2015, 2821, 3385, 4739, 8801, 14105, 16943, 20987, 23695, 44005, 61607, 84715, 104935, 118601, 146909, 220259, 272831, 308035, 525233, 593005, 734545, 1101295, 1364155, 1541813, 1909817, 2626165, 3676631, 6828029, 7709065, 9549085, 11470411, 18383155, 34140145, 47796203, 57352055, 80292877, 149115343, 238981015, 355582741, 401464385, 745576715, 1043807401, 1777913705, 2489079187, 4622575633, 5219037005, 12445395935, 23112878165, 32358029431, 161790147155]

約数ペア:

[(1, 161790147155), (5, 32358029431), (7, 23112878165), (13, 12445395935), (31, 5219037005), (35, 4622575633), (65, 2489079187), (91, 1777913705), (155, 1043807401), (217, 745576715), (403, 401464385), (455, 355582741), (677, 238981015), (1085, 149115343), (2015, 80292877), (2821, 57352055), (3385, 47796203), (4739, 34140145), (8801, 18383155), (14105, 11470411), (16943, 9549085), (20987, 7709065), (23695, 6828029), (44005, 3676631), (61607, 2626165), (84715, 1909817), (104935, 1541813), (118601, 1364155), (146909, 1101295), (220259, 734545), (272831, 593005), (308035, 525233)]