128085440

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{271}}^1$

素因数の和:506

約数の個数: 112

約数和(自身を含む): 351519744

約数和(自身を除く): 223434304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 211, 224, 271, 280, 320, 422, 448, 542, 560, 844, 1055, 1084, 1120, 1355, 1477, 1688, 1897, 2110, 2168, 2240, 2710, 2954, 3376, 3794, 4220, 4336, 5420, 5908, 6752, 7385, 7588, 8440, 8672, 9485, 10840, 11816, 13504, 14770, 15176, 16880, 17344, 18970, 21680, 23632, 29540, 30352, 33760, 37940, 43360, 47264, 57181, 59080, 60704, 67520, 75880, 86720, 94528, 114362, 118160, 121408, 151760, 228724, 236320, 285905, 303520, 400267, 457448, 472640, 571810, 607040, 800534, 914896, 1143620, 1601068, 1829792, 2001335, 2287240, 3202136, 3659584, 4002670, 4574480, 6404272, 8005340, 9148960, 12808544, 16010680, 18297920, 25617088, 32021360, 64042720, 128085440]

約数ペア:

[(1, 128085440), (2, 64042720), (4, 32021360), (5, 25617088), (7, 18297920), (8, 16010680), (10, 12808544), (14, 9148960), (16, 8005340), (20, 6404272), (28, 4574480), (32, 4002670), (35, 3659584), (40, 3202136), (56, 2287240), (64, 2001335), (70, 1829792), (80, 1601068), (112, 1143620), (140, 914896), (160, 800534), (211, 607040), (224, 571810), (271, 472640), (280, 457448), (320, 400267), (422, 303520), (448, 285905), (542, 236320), (560, 228724), (844, 151760), (1055, 121408), (1084, 118160), (1120, 114362), (1355, 94528), (1477, 86720), (1688, 75880), (1897, 67520), (2110, 60704), (2168, 59080), (2240, 57181), (2710, 47264), (2954, 43360), (3376, 37940), (3794, 33760), (4220, 30352), (4336, 29540), (5420, 23632), (5908, 21680), (6752, 18970), (7385, 17344), (7588, 16880), (8440, 15176), (8672, 14770), (9485, 13504), (10840, 11816)]