251567220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{220673}}^1$

素因数の和:220704

約数の個数: 48

約数和(自身を含む): 741464640

約数和(自身を除く): 489897420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 220673, 441346, 662019, 882692, 1103365, 1324038, 2206730, 2648076, 3310095, 4192787, 4413460, 6620190, 8385574, 12578361, 13240380, 16771148, 20963935, 25156722, 41927870, 50313444, 62891805, 83855740, 125783610, 251567220]

約数ペア:

[(1, 251567220), (2, 125783610), (3, 83855740), (4, 62891805), (5, 50313444), (6, 41927870), (10, 25156722), (12, 20963935), (15, 16771148), (19, 13240380), (20, 12578361), (30, 8385574), (38, 6620190), (57, 4413460), (60, 4192787), (76, 3310095), (95, 2648076), (114, 2206730), (190, 1324038), (228, 1103365), (285, 882692), (380, 662019), (570, 441346), (1140, 220673)]