205030900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^2$

素因数の和:182

約数の個数: 108

約数和(自身を含む): 491774080

約数和(自身を除く): 286743180

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 59, 62, 76, 95, 100, 118, 124, 155, 190, 236, 295, 310, 380, 475, 589, 590, 620, 775, 950, 1121, 1178, 1180, 1475, 1550, 1829, 1900, 2242, 2356, 2945, 2950, 3100, 3481, 3658, 4484, 5605, 5890, 5900, 6962, 7316, 9145, 11210, 11780, 13924, 14725, 17405, 18290, 22420, 28025, 29450, 34751, 34810, 36580, 45725, 56050, 58900, 66139, 69502, 69620, 87025, 91450, 107911, 112100, 132278, 139004, 173755, 174050, 182900, 215822, 264556, 330695, 347510, 348100, 431644, 539555, 661390, 695020, 868775, 1079110, 1322780, 1653475, 1737550, 2050309, 2158220, 2697775, 3306950, 3475100, 4100618, 5395550, 6613900, 8201236, 10251545, 10791100, 20503090, 41006180, 51257725, 102515450, 205030900]

約数ペア:

[(1, 205030900), (2, 102515450), (4, 51257725), (5, 41006180), (10, 20503090), (19, 10791100), (20, 10251545), (25, 8201236), (31, 6613900), (38, 5395550), (50, 4100618), (59, 3475100), (62, 3306950), (76, 2697775), (95, 2158220), (100, 2050309), (118, 1737550), (124, 1653475), (155, 1322780), (190, 1079110), (236, 868775), (295, 695020), (310, 661390), (380, 539555), (475, 431644), (589, 348100), (590, 347510), (620, 330695), (775, 264556), (950, 215822), (1121, 182900), (1178, 174050), (1180, 173755), (1475, 139004), (1550, 132278), (1829, 112100), (1900, 107911), (2242, 91450), (2356, 87025), (2945, 69620), (2950, 69502), (3100, 66139), (3481, 58900), (3658, 56050), (4484, 45725), (5605, 36580), (5890, 34810), (5900, 34751), (6962, 29450), (7316, 28025), (9145, 22420), (11210, 18290), (11780, 17405), (13924, 14725)]