128393820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31013}}^1$

素因数の和:31051

約数の個数: 72

約数和(自身を含む): 406407456

約数和(自身を除く): 278013636

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 31013, 62026, 93039, 124052, 155065, 186078, 279117, 310130, 372156, 465195, 558234, 620260, 713299, 930390, 1116468, 1395585, 1426598, 1860780, 2139897, 2791170, 2853196, 3566495, 4279794, 5582340, 6419691, 7132990, 8559588, 10699485, 12839382, 14265980, 21398970, 25678764, 32098455, 42797940, 64196910, 128393820]

約数ペア:

[(1, 128393820), (2, 64196910), (3, 42797940), (4, 32098455), (5, 25678764), (6, 21398970), (9, 14265980), (10, 12839382), (12, 10699485), (15, 8559588), (18, 7132990), (20, 6419691), (23, 5582340), (30, 4279794), (36, 3566495), (45, 2853196), (46, 2791170), (60, 2139897), (69, 1860780), (90, 1426598), (92, 1395585), (115, 1116468), (138, 930390), (180, 713299), (207, 620260), (230, 558234), (276, 465195), (345, 372156), (414, 310130), (460, 279117), (690, 186078), (828, 155065), (1035, 124052), (1380, 93039), (2070, 62026), (4140, 31013)]