2643340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 6451200

約数和(自身を除く): 3807860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 239, 316, 395, 478, 553, 790, 956, 1106, 1195, 1580, 1673, 2212, 2390, 2765, 3346, 4780, 5530, 6692, 8365, 11060, 16730, 18881, 33460, 37762, 75524, 94405, 132167, 188810, 264334, 377620, 528668, 660835, 1321670, 2643340]

約数ペア:

[(1, 2643340), (2, 1321670), (4, 660835), (5, 528668), (7, 377620), (10, 264334), (14, 188810), (20, 132167), (28, 94405), (35, 75524), (70, 37762), (79, 33460), (140, 18881), (158, 16730), (239, 11060), (316, 8365), (395, 6692), (478, 5530), (553, 4780), (790, 3346), (956, 2765), (1106, 2390), (1195, 2212), (1580, 1673)]