20125955320

素因数分解:

$2^3\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{320273}}^1$

素因数の和:321855

約数の個数: 32

約数和(自身を含む): 45312365520

約数和(自身を除く): 25186410200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1571, 3142, 6284, 7855, 12568, 15710, 31420, 62840, 320273, 640546, 1281092, 1601365, 2562184, 3202730, 6405460, 12810920, 503148883, 1006297766, 2012595532, 2515744415, 4025191064, 5031488830, 10062977660, 20125955320]

約数ペア:

[(1, 20125955320), (2, 10062977660), (4, 5031488830), (5, 4025191064), (8, 2515744415), (10, 2012595532), (20, 1006297766), (40, 503148883), (1571, 12810920), (3142, 6405460), (6284, 3202730), (7855, 2562184), (12568, 1601365), (15710, 1281092), (31420, 640546), (62840, 320273)]