19988509440

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5205341}}^1$

素因数の和:5205365

約数の個数: 72

約数和(自身を含む): 63838314288

約数和(自身を除く): 43849804848

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5205341, 10410682, 15616023, 20821364, 26026705, 31232046, 41642728, 52053410, 62464092, 78080115, 83285456, 104106820, 124928184, 156160230, 166570912, 208213640, 249856368, 312320460, 333141824, 416427280, 499712736, 624640920, 666283648, 832854560, 999425472, 1249281840, 1332567296, 1665709120, 1998850944, 2498563680, 3331418240, 3997701888, 4997127360, 6662836480, 9994254720, 19988509440]

約数ペア:

[(1, 19988509440), (2, 9994254720), (3, 6662836480), (4, 4997127360), (5, 3997701888), (6, 3331418240), (8, 2498563680), (10, 1998850944), (12, 1665709120), (15, 1332567296), (16, 1249281840), (20, 999425472), (24, 832854560), (30, 666283648), (32, 624640920), (40, 499712736), (48, 416427280), (60, 333141824), (64, 312320460), (80, 249856368), (96, 208213640), (120, 166570912), (128, 156160230), (160, 124928184), (192, 104106820), (240, 83285456), (256, 78080115), (320, 62464092), (384, 52053410), (480, 41642728), (640, 31232046), (768, 26026705), (960, 20821364), (1280, 15616023), (1920, 10410682), (3840, 5205341)]