21059600

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:217

約数の個数: 120

約数和(自身を含む): 56737440

約数和(自身を除く): 35677840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 34, 38, 40, 50, 68, 76, 80, 85, 95, 100, 136, 152, 163, 170, 190, 200, 272, 304, 323, 326, 340, 380, 400, 425, 475, 646, 652, 680, 760, 815, 850, 950, 1292, 1304, 1360, 1520, 1615, 1630, 1700, 1900, 2584, 2608, 2771, 3097, 3230, 3260, 3400, 3800, 4075, 5168, 5542, 6194, 6460, 6520, 6800, 7600, 8075, 8150, 11084, 12388, 12920, 13040, 13855, 15485, 16150, 16300, 22168, 24776, 25840, 27710, 30970, 32300, 32600, 44336, 49552, 52649, 55420, 61940, 64600, 65200, 69275, 77425, 105298, 110840, 123880, 129200, 138550, 154850, 210596, 221680, 247760, 263245, 277100, 309700, 421192, 526490, 554200, 619400, 842384, 1052980, 1108400, 1238800, 1316225, 2105960, 2632450, 4211920, 5264900, 10529800, 21059600]

約数ペア:

[(1, 21059600), (2, 10529800), (4, 5264900), (5, 4211920), (8, 2632450), (10, 2105960), (16, 1316225), (17, 1238800), (19, 1108400), (20, 1052980), (25, 842384), (34, 619400), (38, 554200), (40, 526490), (50, 421192), (68, 309700), (76, 277100), (80, 263245), (85, 247760), (95, 221680), (100, 210596), (136, 154850), (152, 138550), (163, 129200), (170, 123880), (190, 110840), (200, 105298), (272, 77425), (304, 69275), (323, 65200), (326, 64600), (340, 61940), (380, 55420), (400, 52649), (425, 49552), (475, 44336), (646, 32600), (652, 32300), (680, 30970), (760, 27710), (815, 25840), (850, 24776), (950, 22168), (1292, 16300), (1304, 16150), (1360, 15485), (1520, 13855), (1615, 13040), (1630, 12920), (1700, 12388), (1900, 11084), (2584, 8150), (2608, 8075), (2771, 7600), (3097, 6800), (3230, 6520), (3260, 6460), (3400, 6194), (3800, 5542), (4075, 5168)]