78480900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{9689}}^1$

素因数の和:9715

約数の個数: 90

約数和(自身を含む): 254430330

約数和(自身を除く): 175949430

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 270, 300, 324, 405, 450, 540, 675, 810, 900, 1350, 1620, 2025, 2700, 4050, 8100, 9689, 19378, 29067, 38756, 48445, 58134, 87201, 96890, 116268, 145335, 174402, 193780, 242225, 261603, 290670, 348804, 436005, 484450, 523206, 581340, 726675, 784809, 872010, 968900, 1046412, 1308015, 1453350, 1569618, 1744020, 2180025, 2616030, 2906700, 3139236, 3924045, 4360050, 5232060, 6540075, 7848090, 8720100, 13080150, 15696180, 19620225, 26160300, 39240450, 78480900]

約数ペア:

[(1, 78480900), (2, 39240450), (3, 26160300), (4, 19620225), (5, 15696180), (6, 13080150), (9, 8720100), (10, 7848090), (12, 6540075), (15, 5232060), (18, 4360050), (20, 3924045), (25, 3139236), (27, 2906700), (30, 2616030), (36, 2180025), (45, 1744020), (50, 1569618), (54, 1453350), (60, 1308015), (75, 1046412), (81, 968900), (90, 872010), (100, 784809), (108, 726675), (135, 581340), (150, 523206), (162, 484450), (180, 436005), (225, 348804), (270, 290670), (300, 261603), (324, 242225), (405, 193780), (450, 174402), (540, 145335), (675, 116268), (810, 96890), (900, 87201), (1350, 58134), (1620, 48445), (2025, 38756), (2700, 29067), (4050, 19378), (8100, 9689)]