721542135

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{31793}}^1$

素因数の和:31907

約数の個数: 32

約数和(自身を含む): 1236150720

約数和(自身を除く): 514608585

約数列:

[1, 3, 5, 15, 17, 51, 85, 89, 255, 267, 445, 1335, 1513, 4539, 7565, 22695, 31793, 95379, 158965, 476895, 540481, 1621443, 2702405, 2829577, 8107215, 8488731, 14147885, 42443655, 48102809, 144308427, 240514045, 721542135]

約数ペア:

[(1, 721542135), (3, 240514045), (5, 144308427), (15, 48102809), (17, 42443655), (51, 14147885), (85, 8488731), (89, 8107215), (255, 2829577), (267, 2702405), (445, 1621443), (1335, 540481), (1513, 476895), (4539, 158965), (7565, 95379), (22695, 31793)]