81927420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2591}}^1$

素因数の和:2651

約数の個数: 96

約数和(自身を含む): 250822656

約数和(自身を除く): 168895236

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 31, 34, 51, 60, 62, 68, 85, 93, 102, 124, 155, 170, 186, 204, 255, 310, 340, 372, 465, 510, 527, 620, 930, 1020, 1054, 1581, 1860, 2108, 2591, 2635, 3162, 5182, 5270, 6324, 7773, 7905, 10364, 10540, 12955, 15546, 15810, 25910, 31092, 31620, 38865, 44047, 51820, 77730, 80321, 88094, 132141, 155460, 160642, 176188, 220235, 240963, 264282, 321284, 401605, 440470, 481926, 528564, 660705, 803210, 880940, 963852, 1204815, 1321410, 1365457, 1606420, 2409630, 2642820, 2730914, 4096371, 4819260, 5461828, 6827285, 8192742, 13654570, 16385484, 20481855, 27309140, 40963710, 81927420]

約数ペア:

[(1, 81927420), (2, 40963710), (3, 27309140), (4, 20481855), (5, 16385484), (6, 13654570), (10, 8192742), (12, 6827285), (15, 5461828), (17, 4819260), (20, 4096371), (30, 2730914), (31, 2642820), (34, 2409630), (51, 1606420), (60, 1365457), (62, 1321410), (68, 1204815), (85, 963852), (93, 880940), (102, 803210), (124, 660705), (155, 528564), (170, 481926), (186, 440470), (204, 401605), (255, 321284), (310, 264282), (340, 240963), (372, 220235), (465, 176188), (510, 160642), (527, 155460), (620, 132141), (930, 88094), (1020, 80321), (1054, 77730), (1581, 51820), (1860, 44047), (2108, 38865), (2591, 31620), (2635, 31092), (3162, 25910), (5182, 15810), (5270, 15546), (6324, 12955), (7773, 10540), (7905, 10364)]