19712760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2693}}^1$

素因数の和:2768

約数の個数: 64

約数和(自身を含む): 60130080

約数和(自身を除く): 40417320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2693, 3660, 5386, 7320, 8079, 10772, 13465, 16158, 21544, 26930, 32316, 40395, 53860, 64632, 80790, 107720, 161580, 164273, 323160, 328546, 492819, 657092, 821365, 985638, 1314184, 1642730, 1971276, 2464095, 3285460, 3942552, 4928190, 6570920, 9856380, 19712760]

約数ペア:

[(1, 19712760), (2, 9856380), (3, 6570920), (4, 4928190), (5, 3942552), (6, 3285460), (8, 2464095), (10, 1971276), (12, 1642730), (15, 1314184), (20, 985638), (24, 821365), (30, 657092), (40, 492819), (60, 328546), (61, 323160), (120, 164273), (122, 161580), (183, 107720), (244, 80790), (305, 64632), (366, 53860), (488, 40395), (610, 32316), (732, 26930), (915, 21544), (1220, 16158), (1464, 13465), (1830, 10772), (2440, 8079), (2693, 7320), (3660, 5386)]