31591300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1279}}^1$

素因数の和:1325

約数の個数: 72

約数和(自身を含む): 77772800

約数和(自身を除く): 46181500

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 95, 100, 130, 190, 247, 260, 325, 380, 475, 494, 650, 950, 988, 1235, 1279, 1300, 1900, 2470, 2558, 4940, 5116, 6175, 6395, 12350, 12790, 16627, 24301, 24700, 25580, 31975, 33254, 48602, 63950, 66508, 83135, 97204, 121505, 127900, 166270, 243010, 315913, 332540, 415675, 486020, 607525, 631826, 831350, 1215050, 1263652, 1579565, 1662700, 2430100, 3159130, 6318260, 7897825, 15795650, 31591300]

約数ペア:

[(1, 31591300), (2, 15795650), (4, 7897825), (5, 6318260), (10, 3159130), (13, 2430100), (19, 1662700), (20, 1579565), (25, 1263652), (26, 1215050), (38, 831350), (50, 631826), (52, 607525), (65, 486020), (76, 415675), (95, 332540), (100, 315913), (130, 243010), (190, 166270), (247, 127900), (260, 121505), (325, 97204), (380, 83135), (475, 66508), (494, 63950), (650, 48602), (950, 33254), (988, 31975), (1235, 25580), (1279, 24700), (1300, 24301), (1900, 16627), (2470, 12790), (2558, 12350), (4940, 6395), (5116, 6175)]