205728720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{857203}}^1$

素因数の和:857219

約数の個数: 40

約数和(自身を含む): 637759776

約数和(自身を除く): 432031056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 857203, 1714406, 2571609, 3428812, 4286015, 5143218, 6857624, 8572030, 10286436, 12858045, 13715248, 17144060, 20572872, 25716090, 34288120, 41145744, 51432180, 68576240, 102864360, 205728720]

約数ペア:

[(1, 205728720), (2, 102864360), (3, 68576240), (4, 51432180), (5, 41145744), (6, 34288120), (8, 25716090), (10, 20572872), (12, 17144060), (15, 13715248), (16, 12858045), (20, 10286436), (24, 8572030), (30, 6857624), (40, 5143218), (48, 4286015), (60, 3428812), (80, 2571609), (120, 1714406), (240, 857203)]