201405880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2467}}^1$

素因数の和:2648

約数の個数: 64

約数和(自身を含む): 491329440

約数和(自身を除く): 289923560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 314, 520, 628, 785, 1256, 1570, 2041, 2467, 3140, 4082, 4934, 6280, 8164, 9868, 10205, 12335, 16328, 19736, 20410, 24670, 32071, 40820, 49340, 64142, 81640, 98680, 128284, 160355, 256568, 320710, 387319, 641420, 774638, 1282840, 1549276, 1936595, 3098552, 3873190, 5035147, 7746380, 10070294, 15492760, 20140588, 25175735, 40281176, 50351470, 100702940, 201405880]

約数ペア:

[(1, 201405880), (2, 100702940), (4, 50351470), (5, 40281176), (8, 25175735), (10, 20140588), (13, 15492760), (20, 10070294), (26, 7746380), (40, 5035147), (52, 3873190), (65, 3098552), (104, 1936595), (130, 1549276), (157, 1282840), (260, 774638), (314, 641420), (520, 387319), (628, 320710), (785, 256568), (1256, 160355), (1570, 128284), (2041, 98680), (2467, 81640), (3140, 64142), (4082, 49340), (4934, 40820), (6280, 32071), (8164, 24670), (9868, 20410), (10205, 19736), (12335, 16328)]