157478720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{307}}^1$

素因数の和:560

約数の個数: 112

約数和(自身を含む): 431840640

約数和(自身を除く): 274361920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 229, 280, 307, 320, 448, 458, 560, 614, 916, 1120, 1145, 1228, 1535, 1603, 1832, 2149, 2240, 2290, 2456, 3070, 3206, 3664, 4298, 4580, 4912, 6140, 6412, 7328, 8015, 8596, 9160, 9824, 10745, 12280, 12824, 14656, 16030, 17192, 18320, 19648, 21490, 24560, 25648, 32060, 34384, 36640, 42980, 49120, 51296, 64120, 68768, 70303, 73280, 85960, 98240, 102592, 128240, 137536, 140606, 171920, 256480, 281212, 343840, 351515, 492121, 512960, 562424, 687680, 703030, 984242, 1124848, 1406060, 1968484, 2249696, 2460605, 2812120, 3936968, 4499392, 4921210, 5624240, 7873936, 9842420, 11248480, 15747872, 19684840, 22496960, 31495744, 39369680, 78739360, 157478720]

約数ペア:

[(1, 157478720), (2, 78739360), (4, 39369680), (5, 31495744), (7, 22496960), (8, 19684840), (10, 15747872), (14, 11248480), (16, 9842420), (20, 7873936), (28, 5624240), (32, 4921210), (35, 4499392), (40, 3936968), (56, 2812120), (64, 2460605), (70, 2249696), (80, 1968484), (112, 1406060), (140, 1124848), (160, 984242), (224, 703030), (229, 687680), (280, 562424), (307, 512960), (320, 492121), (448, 351515), (458, 343840), (560, 281212), (614, 256480), (916, 171920), (1120, 140606), (1145, 137536), (1228, 128240), (1535, 102592), (1603, 98240), (1832, 85960), (2149, 73280), (2240, 70303), (2290, 68768), (2456, 64120), (3070, 51296), (3206, 49120), (3664, 42980), (4298, 36640), (4580, 34384), (4912, 32060), (6140, 25648), (6412, 24560), (7328, 21490), (8015, 19648), (8596, 18320), (9160, 17192), (9824, 16030), (10745, 14656), (12280, 12824)]