80363440

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11287}}^1$

素因数の和:11389

約数の個数: 40

約数和(自身を含む): 188961120

約数和(自身を除く): 108597680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 11287, 22574, 45148, 56435, 90296, 112870, 180592, 225740, 451480, 902960, 1004543, 2009086, 4018172, 5022715, 8036344, 10045430, 16072688, 20090860, 40181720, 80363440]

約数ペア:

[(1, 80363440), (2, 40181720), (4, 20090860), (5, 16072688), (8, 10045430), (10, 8036344), (16, 5022715), (20, 4018172), (40, 2009086), (80, 1004543), (89, 902960), (178, 451480), (356, 225740), (445, 180592), (712, 112870), (890, 90296), (1424, 56435), (1780, 45148), (3560, 22574), (7120, 11287)]