201212090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 393206400

約数和(自身を除く): 191994310

約数列:

[1, 2, 5, 10, 19, 38, 73, 89, 95, 146, 163, 178, 190, 326, 365, 445, 730, 815, 890, 1387, 1630, 1691, 2774, 3097, 3382, 6194, 6497, 6935, 8455, 11899, 12994, 13870, 14507, 15485, 16910, 23798, 29014, 30970, 32485, 59495, 64970, 72535, 118990, 123443, 145070, 226081, 246886, 275633, 452162, 551266, 617215, 1059011, 1130405, 1234430, 1378165, 2118022, 2260810, 2756330, 5295055, 10590110, 20121209, 40242418, 100606045, 201212090]

約数ペア:

[(1, 201212090), (2, 100606045), (5, 40242418), (10, 20121209), (19, 10590110), (38, 5295055), (73, 2756330), (89, 2260810), (95, 2118022), (146, 1378165), (163, 1234430), (178, 1130405), (190, 1059011), (326, 617215), (365, 551266), (445, 452162), (730, 275633), (815, 246886), (890, 226081), (1387, 145070), (1630, 123443), (1691, 118990), (2774, 72535), (3097, 64970), (3382, 59495), (6194, 32485), (6497, 30970), (6935, 29014), (8455, 23798), (11899, 16910), (12994, 15485), (13870, 14507)]