81904564

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1429}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 172972800

約数和(自身を除く): 91068236

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 89, 92, 161, 178, 322, 356, 623, 644, 1246, 1429, 2047, 2492, 2858, 4094, 5716, 8188, 10003, 14329, 20006, 28658, 32867, 40012, 57316, 65734, 127181, 131468, 230069, 254362, 460138, 508724, 890267, 920276, 1780534, 2925163, 3561068, 5850326, 11700652, 20476141, 40952282, 81904564]

約数ペア:

[(1, 81904564), (2, 40952282), (4, 20476141), (7, 11700652), (14, 5850326), (23, 3561068), (28, 2925163), (46, 1780534), (89, 920276), (92, 890267), (161, 508724), (178, 460138), (322, 254362), (356, 230069), (623, 131468), (644, 127181), (1246, 65734), (1429, 57316), (2047, 40012), (2492, 32867), (2858, 28658), (4094, 20006), (5716, 14329), (8188, 10003)]