155075840

素因数分解:

$2^8\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1249}}^1$

素因数の和:1367

約数の個数: 72

約数和(自身を含む): 375585000

約数和(自身を除く): 220509160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 256, 320, 388, 485, 640, 776, 970, 1249, 1280, 1552, 1940, 2498, 3104, 3880, 4996, 6208, 6245, 7760, 9992, 12416, 12490, 15520, 19984, 24832, 24980, 31040, 39968, 49960, 62080, 79936, 99920, 121153, 124160, 159872, 199840, 242306, 319744, 399680, 484612, 605765, 799360, 969224, 1211530, 1598720, 1938448, 2423060, 3876896, 4846120, 7753792, 9692240, 15507584, 19384480, 31015168, 38768960, 77537920, 155075840]

約数ペア:

[(1, 155075840), (2, 77537920), (4, 38768960), (5, 31015168), (8, 19384480), (10, 15507584), (16, 9692240), (20, 7753792), (32, 4846120), (40, 3876896), (64, 2423060), (80, 1938448), (97, 1598720), (128, 1211530), (160, 969224), (194, 799360), (256, 605765), (320, 484612), (388, 399680), (485, 319744), (640, 242306), (776, 199840), (970, 159872), (1249, 124160), (1280, 121153), (1552, 99920), (1940, 79936), (2498, 62080), (3104, 49960), (3880, 39968), (4996, 31040), (6208, 24980), (6245, 24832), (7760, 19984), (9992, 15520), (12416, 12490)]