81677340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15647}}^1$

素因数の和:15691

約数の個数: 72

約数和(自身を含む): 256314240

約数和(自身を除く): 174636900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 15647, 31294, 46941, 62588, 78235, 93882, 140823, 156470, 187764, 234705, 281646, 312940, 453763, 469410, 563292, 704115, 907526, 938820, 1361289, 1408230, 1815052, 2268815, 2722578, 2816460, 4083867, 4537630, 5445156, 6806445, 8167734, 9075260, 13612890, 16335468, 20419335, 27225780, 40838670, 81677340]

約数ペア:

[(1, 81677340), (2, 40838670), (3, 27225780), (4, 20419335), (5, 16335468), (6, 13612890), (9, 9075260), (10, 8167734), (12, 6806445), (15, 5445156), (18, 4537630), (20, 4083867), (29, 2816460), (30, 2722578), (36, 2268815), (45, 1815052), (58, 1408230), (60, 1361289), (87, 938820), (90, 907526), (116, 704115), (145, 563292), (174, 469410), (180, 453763), (261, 312940), (290, 281646), (348, 234705), (435, 187764), (522, 156470), (580, 140823), (870, 93882), (1044, 78235), (1305, 62588), (1740, 46941), (2610, 31294), (5220, 15647)]