213876920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{811}}^1$

素因数の和:1188

約数の個数: 64

約数和(自身を含む): 508636800

約数和(自身を除く): 294759880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 347, 380, 694, 760, 811, 1388, 1622, 1735, 2776, 3244, 3470, 4055, 6488, 6593, 6940, 8110, 13186, 13880, 15409, 16220, 26372, 30818, 32440, 32965, 52744, 61636, 65930, 77045, 123272, 131860, 154090, 263720, 281417, 308180, 562834, 616360, 1125668, 1407085, 2251336, 2814170, 5346923, 5628340, 10693846, 11256680, 21387692, 26734615, 42775384, 53469230, 106938460, 213876920]

約数ペア:

[(1, 213876920), (2, 106938460), (4, 53469230), (5, 42775384), (8, 26734615), (10, 21387692), (19, 11256680), (20, 10693846), (38, 5628340), (40, 5346923), (76, 2814170), (95, 2251336), (152, 1407085), (190, 1125668), (347, 616360), (380, 562834), (694, 308180), (760, 281417), (811, 263720), (1388, 154090), (1622, 131860), (1735, 123272), (2776, 77045), (3244, 65930), (3470, 61636), (4055, 52744), (6488, 32965), (6593, 32440), (6940, 30818), (8110, 26372), (13186, 16220), (13880, 15409)]