16886860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 36741600

約数和(自身を除く): 19854740

約数列:

[1, 2, 4, 5, 10, 20, 53, 89, 106, 178, 179, 212, 265, 356, 358, 445, 530, 716, 890, 895, 1060, 1780, 1790, 3580, 4717, 9434, 9487, 15931, 18868, 18974, 23585, 31862, 37948, 47170, 47435, 63724, 79655, 94340, 94870, 159310, 189740, 318620, 844343, 1688686, 3377372, 4221715, 8443430, 16886860]

約数ペア:

[(1, 16886860), (2, 8443430), (4, 4221715), (5, 3377372), (10, 1688686), (20, 844343), (53, 318620), (89, 189740), (106, 159310), (178, 94870), (179, 94340), (212, 79655), (265, 63724), (356, 47435), (358, 47170), (445, 37948), (530, 31862), (716, 23585), (890, 18974), (895, 18868), (1060, 15931), (1780, 9487), (1790, 9434), (3580, 4717)]