231444640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:639

約数の個数: 144

約数和(自身を含む): 649224072

約数和(自身を除く): 417779432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 53, 56, 70, 80, 98, 106, 112, 140, 160, 196, 212, 224, 245, 265, 280, 371, 392, 424, 490, 530, 557, 560, 742, 784, 848, 980, 1060, 1114, 1120, 1484, 1568, 1696, 1855, 1960, 2120, 2228, 2597, 2785, 2968, 3710, 3899, 3920, 4240, 4456, 5194, 5570, 5936, 7420, 7798, 7840, 8480, 8912, 10388, 11140, 11872, 12985, 14840, 15596, 17824, 19495, 20776, 22280, 25970, 27293, 29521, 29680, 31192, 38990, 41552, 44560, 51940, 54586, 59042, 59360, 62384, 77980, 83104, 89120, 103880, 109172, 118084, 124768, 136465, 147605, 155960, 206647, 207760, 218344, 236168, 272930, 295210, 311920, 413294, 415520, 436688, 472336, 545860, 590420, 623840, 826588, 873376, 944672, 1033235, 1091720, 1180840, 1446529, 1653176, 2066470, 2183440, 2361680, 2893058, 3306352, 4132940, 4366880, 4723360, 5786116, 6612704, 7232645, 8265880, 11572232, 14465290, 16531760, 23144464, 28930580, 33063520, 46288928, 57861160, 115722320, 231444640]

約数ペア:

[(1, 231444640), (2, 115722320), (4, 57861160), (5, 46288928), (7, 33063520), (8, 28930580), (10, 23144464), (14, 16531760), (16, 14465290), (20, 11572232), (28, 8265880), (32, 7232645), (35, 6612704), (40, 5786116), (49, 4723360), (53, 4366880), (56, 4132940), (70, 3306352), (80, 2893058), (98, 2361680), (106, 2183440), (112, 2066470), (140, 1653176), (160, 1446529), (196, 1180840), (212, 1091720), (224, 1033235), (245, 944672), (265, 873376), (280, 826588), (371, 623840), (392, 590420), (424, 545860), (490, 472336), (530, 436688), (557, 415520), (560, 413294), (742, 311920), (784, 295210), (848, 272930), (980, 236168), (1060, 218344), (1114, 207760), (1120, 206647), (1484, 155960), (1568, 147605), (1696, 136465), (1855, 124768), (1960, 118084), (2120, 109172), (2228, 103880), (2597, 89120), (2785, 83104), (2968, 77980), (3710, 62384), (3899, 59360), (3920, 59042), (4240, 54586), (4456, 51940), (5194, 44560), (5570, 41552), (5936, 38990), (7420, 31192), (7798, 29680), (7840, 29521), (8480, 27293), (8912, 25970), (10388, 22280), (11140, 20776), (11872, 19495), (12985, 17824), (14840, 15596)]