254995780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{2963}}^1$

素因数の和:3316

約数の個数: 48

約数和(自身を含む): 578620224

約数和(自身を除く): 323624444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 331, 662, 1324, 1655, 2963, 3310, 4303, 5926, 6620, 8606, 11852, 14815, 17212, 21515, 29630, 38519, 43030, 59260, 77038, 86060, 154076, 192595, 385190, 770380, 980753, 1961506, 3923012, 4903765, 9807530, 12749789, 19615060, 25499578, 50999156, 63748945, 127497890, 254995780]

約数ペア:

[(1, 254995780), (2, 127497890), (4, 63748945), (5, 50999156), (10, 25499578), (13, 19615060), (20, 12749789), (26, 9807530), (52, 4903765), (65, 3923012), (130, 1961506), (260, 980753), (331, 770380), (662, 385190), (1324, 192595), (1655, 154076), (2963, 86060), (3310, 77038), (4303, 59260), (5926, 43030), (6620, 38519), (8606, 29630), (11852, 21515), (14815, 17212)]