181301900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1567}}^1$

素因数の和:1683

約数の個数: 72

約数和(自身を含む): 428722560

約数和(自身を除く): 247420660

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 89, 100, 130, 178, 260, 325, 356, 445, 650, 890, 1157, 1300, 1567, 1780, 2225, 2314, 3134, 4450, 4628, 5785, 6268, 7835, 8900, 11570, 15670, 20371, 23140, 28925, 31340, 39175, 40742, 57850, 78350, 81484, 101855, 115700, 139463, 156700, 203710, 278926, 407420, 509275, 557852, 697315, 1018550, 1394630, 1813019, 2037100, 2789260, 3486575, 3626038, 6973150, 7252076, 9065095, 13946300, 18130190, 36260380, 45325475, 90650950, 181301900]

約数ペア:

[(1, 181301900), (2, 90650950), (4, 45325475), (5, 36260380), (10, 18130190), (13, 13946300), (20, 9065095), (25, 7252076), (26, 6973150), (50, 3626038), (52, 3486575), (65, 2789260), (89, 2037100), (100, 1813019), (130, 1394630), (178, 1018550), (260, 697315), (325, 557852), (356, 509275), (445, 407420), (650, 278926), (890, 203710), (1157, 156700), (1300, 139463), (1567, 115700), (1780, 101855), (2225, 81484), (2314, 78350), (3134, 57850), (4450, 40742), (4628, 39175), (5785, 31340), (6268, 28925), (7835, 23140), (8900, 20371), (11570, 15670)]