81888900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{3067}}^1$

素因数の和:3173

約数の個数: 72

約数和(自身を含む): 239672160

約数和(自身を除く): 157783260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 89, 100, 150, 178, 267, 300, 356, 445, 534, 890, 1068, 1335, 1780, 2225, 2670, 3067, 4450, 5340, 6134, 6675, 8900, 9201, 12268, 13350, 15335, 18402, 26700, 30670, 36804, 46005, 61340, 76675, 92010, 153350, 184020, 230025, 272963, 306700, 460050, 545926, 818889, 920100, 1091852, 1364815, 1637778, 2729630, 3275556, 4094445, 5459260, 6824075, 8188890, 13648150, 16377780, 20472225, 27296300, 40944450, 81888900]

約数ペア:

[(1, 81888900), (2, 40944450), (3, 27296300), (4, 20472225), (5, 16377780), (6, 13648150), (10, 8188890), (12, 6824075), (15, 5459260), (20, 4094445), (25, 3275556), (30, 2729630), (50, 1637778), (60, 1364815), (75, 1091852), (89, 920100), (100, 818889), (150, 545926), (178, 460050), (267, 306700), (300, 272963), (356, 230025), (445, 184020), (534, 153350), (890, 92010), (1068, 76675), (1335, 61340), (1780, 46005), (2225, 36804), (2670, 30670), (3067, 26700), (4450, 18402), (5340, 15335), (6134, 13350), (6675, 12268), (8900, 9201)]