20197950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{373}}^1$

素因数の和:426

約数の個数: 72

約数和(自身を含む): 53007768

約数和(自身を除く): 32809818

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 57, 75, 95, 114, 150, 190, 285, 361, 373, 475, 570, 722, 746, 950, 1083, 1119, 1425, 1805, 1865, 2166, 2238, 2850, 3610, 3730, 5415, 5595, 7087, 9025, 9325, 10830, 11190, 14174, 18050, 18650, 21261, 27075, 27975, 35435, 42522, 54150, 55950, 70870, 106305, 134653, 177175, 212610, 269306, 354350, 403959, 531525, 673265, 807918, 1063050, 1346530, 2019795, 3366325, 4039590, 6732650, 10098975, 20197950]

約数ペア:

[(1, 20197950), (2, 10098975), (3, 6732650), (5, 4039590), (6, 3366325), (10, 2019795), (15, 1346530), (19, 1063050), (25, 807918), (30, 673265), (38, 531525), (50, 403959), (57, 354350), (75, 269306), (95, 212610), (114, 177175), (150, 134653), (190, 106305), (285, 70870), (361, 55950), (373, 54150), (475, 42522), (570, 35435), (722, 27975), (746, 27075), (950, 21261), (1083, 18650), (1119, 18050), (1425, 14174), (1805, 11190), (1865, 10830), (2166, 9325), (2238, 9025), (2850, 7087), (3610, 5595), (3730, 5415)]