12956816240

素因数分解:

$2^4\times 5^1\times {\mathrm{661}}^1\times {\mathrm{245023}}^1$

素因数の和:245697

約数の個数: 40

約数和(自身を含む): 30170295168

約数和(自身を除く): 17213478928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 661, 1322, 2644, 3305, 5288, 6610, 10576, 13220, 26440, 52880, 245023, 490046, 980092, 1225115, 1960184, 2450230, 3920368, 4900460, 9800920, 19601840, 161960203, 323920406, 647840812, 809801015, 1295681624, 1619602030, 2591363248, 3239204060, 6478408120, 12956816240]

約数ペア:

[(1, 12956816240), (2, 6478408120), (4, 3239204060), (5, 2591363248), (8, 1619602030), (10, 1295681624), (16, 809801015), (20, 647840812), (40, 323920406), (80, 161960203), (661, 19601840), (1322, 9800920), (2644, 4900460), (3305, 3920368), (5288, 2450230), (6610, 1960184), (10576, 1225115), (13220, 980092), (26440, 490046), (52880, 245023)]