280131930

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239429}}^1$

素因数の和:239455

約数の個数: 48

約数和(自身を含む): 784372680

約数和(自身を除く): 504240750

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 239429, 478858, 718287, 1197145, 1436574, 2154861, 2394290, 3112577, 3591435, 4309722, 6225154, 7182870, 9337731, 10774305, 15562885, 18675462, 21548610, 28013193, 31125770, 46688655, 56026386, 93377310, 140065965, 280131930]

約数ペア:

[(1, 280131930), (2, 140065965), (3, 93377310), (5, 56026386), (6, 46688655), (9, 31125770), (10, 28013193), (13, 21548610), (15, 18675462), (18, 15562885), (26, 10774305), (30, 9337731), (39, 7182870), (45, 6225154), (65, 4309722), (78, 3591435), (90, 3112577), (117, 2394290), (130, 2154861), (195, 1436574), (234, 1197145), (390, 718287), (585, 478858), (1170, 239429)]