2141440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{239}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 5886720

約数和(自身を除く): 3745280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 239, 256, 280, 320, 448, 478, 560, 640, 896, 956, 1120, 1195, 1280, 1673, 1792, 1912, 2240, 2390, 3346, 3824, 4480, 4780, 6692, 7648, 8365, 8960, 9560, 13384, 15296, 16730, 19120, 26768, 30592, 33460, 38240, 53536, 61184, 66920, 76480, 107072, 133840, 152960, 214144, 267680, 305920, 428288, 535360, 1070720, 2141440]

約数ペア:

[(1, 2141440), (2, 1070720), (4, 535360), (5, 428288), (7, 305920), (8, 267680), (10, 214144), (14, 152960), (16, 133840), (20, 107072), (28, 76480), (32, 66920), (35, 61184), (40, 53536), (56, 38240), (64, 33460), (70, 30592), (80, 26768), (112, 19120), (128, 16730), (140, 15296), (160, 13384), (224, 9560), (239, 8960), (256, 8365), (280, 7648), (320, 6692), (448, 4780), (478, 4480), (560, 3824), (640, 3346), (896, 2390), (956, 2240), (1120, 1912), (1195, 1792), (1280, 1673)]