25620340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 56206080

約数和(自身を除く): 30585740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 163, 271, 290, 326, 542, 580, 652, 815, 1084, 1355, 1630, 2710, 3260, 4727, 5420, 7859, 9454, 15718, 18908, 23635, 31436, 39295, 44173, 47270, 78590, 88346, 94540, 157180, 176692, 220865, 441730, 883460, 1281017, 2562034, 5124068, 6405085, 12810170, 25620340]

約数ペア:

[(1, 25620340), (2, 12810170), (4, 6405085), (5, 5124068), (10, 2562034), (20, 1281017), (29, 883460), (58, 441730), (116, 220865), (145, 176692), (163, 157180), (271, 94540), (290, 88346), (326, 78590), (542, 47270), (580, 44173), (652, 39295), (815, 31436), (1084, 23635), (1355, 18908), (1630, 15718), (2710, 9454), (3260, 7859), (4727, 5420)]