128432640

素因数分解:

$2^9\times 3^1\times 5^1\times 7^1\times {\mathrm{2389}}^1$

素因数の和:2422

約数の個数: 160

約数和(自身を含む): 469434240

約数和(自身を除く): 341001600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 512, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1536, 1680, 1792, 1920, 2240, 2389, 2560, 2688, 3360, 3584, 3840, 4480, 4778, 5376, 6720, 7167, 7680, 8960, 9556, 10752, 11945, 13440, 14334, 16723, 17920, 19112, 23890, 26880, 28668, 33446, 35835, 38224, 47780, 50169, 53760, 57336, 66892, 71670, 76448, 83615, 95560, 100338, 114672, 133784, 143340, 152896, 167230, 191120, 200676, 229344, 250845, 267568, 286680, 305792, 334460, 382240, 401352, 458688, 501690, 535136, 573360, 611584, 668920, 764480, 802704, 917376, 1003380, 1070272, 1146720, 1223168, 1337840, 1528960, 1605408, 1834752, 2006760, 2140544, 2293440, 2675680, 3057920, 3210816, 3669504, 4013520, 4281088, 4586880, 5351360, 6115840, 6421632, 8027040, 8562176, 9173760, 10702720, 12843264, 16054080, 18347520, 21405440, 25686528, 32108160, 42810880, 64216320, 128432640]

約数ペア:

[(1, 128432640), (2, 64216320), (3, 42810880), (4, 32108160), (5, 25686528), (6, 21405440), (7, 18347520), (8, 16054080), (10, 12843264), (12, 10702720), (14, 9173760), (15, 8562176), (16, 8027040), (20, 6421632), (21, 6115840), (24, 5351360), (28, 4586880), (30, 4281088), (32, 4013520), (35, 3669504), (40, 3210816), (42, 3057920), (48, 2675680), (56, 2293440), (60, 2140544), (64, 2006760), (70, 1834752), (80, 1605408), (84, 1528960), (96, 1337840), (105, 1223168), (112, 1146720), (120, 1070272), (128, 1003380), (140, 917376), (160, 802704), (168, 764480), (192, 668920), (210, 611584), (224, 573360), (240, 535136), (256, 501690), (280, 458688), (320, 401352), (336, 382240), (384, 334460), (420, 305792), (448, 286680), (480, 267568), (512, 250845), (560, 229344), (640, 200676), (672, 191120), (768, 167230), (840, 152896), (896, 143340), (960, 133784), (1120, 114672), (1280, 100338), (1344, 95560), (1536, 83615), (1680, 76448), (1792, 71670), (1920, 66892), (2240, 57336), (2389, 53760), (2560, 50169), (2688, 47780), (3360, 38224), (3584, 35835), (3840, 33446), (4480, 28668), (4778, 26880), (5376, 23890), (6720, 19112), (7167, 17920), (7680, 16723), (8960, 14334), (9556, 13440), (10752, 11945)]