861157900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{15629}}^1$

素因数の和:15691

約数の個数: 72

約数和(自身を含む): 2035026000

約数和(自身を除く): 1173868100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 29, 38, 50, 58, 76, 95, 100, 116, 145, 190, 290, 380, 475, 551, 580, 725, 950, 1102, 1450, 1900, 2204, 2755, 2900, 5510, 11020, 13775, 15629, 27550, 31258, 55100, 62516, 78145, 156290, 296951, 312580, 390725, 453241, 593902, 781450, 906482, 1187804, 1484755, 1562900, 1812964, 2266205, 2969510, 4532410, 5939020, 7423775, 8611579, 9064820, 11331025, 14847550, 17223158, 22662050, 29695100, 34446316, 43057895, 45324100, 86115790, 172231580, 215289475, 430578950, 861157900]

約数ペア:

[(1, 861157900), (2, 430578950), (4, 215289475), (5, 172231580), (10, 86115790), (19, 45324100), (20, 43057895), (25, 34446316), (29, 29695100), (38, 22662050), (50, 17223158), (58, 14847550), (76, 11331025), (95, 9064820), (100, 8611579), (116, 7423775), (145, 5939020), (190, 4532410), (290, 2969510), (380, 2266205), (475, 1812964), (551, 1562900), (580, 1484755), (725, 1187804), (950, 906482), (1102, 781450), (1450, 593902), (1900, 453241), (2204, 390725), (2755, 312580), (2900, 296951), (5510, 156290), (11020, 78145), (13775, 62516), (15629, 55100), (27550, 31258)]