78741040

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:459

約数の個数: 120

約数和(自身を含む): 217553040

約数和(自身を除く): 138812000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 53, 56, 70, 80, 98, 106, 112, 140, 196, 212, 245, 265, 280, 371, 379, 392, 424, 490, 530, 560, 742, 758, 784, 848, 980, 1060, 1484, 1516, 1855, 1895, 1960, 2120, 2597, 2653, 2968, 3032, 3710, 3790, 3920, 4240, 5194, 5306, 5936, 6064, 7420, 7580, 10388, 10612, 12985, 13265, 14840, 15160, 18571, 20087, 20776, 21224, 25970, 26530, 29680, 30320, 37142, 40174, 41552, 42448, 51940, 53060, 74284, 80348, 92855, 100435, 103880, 106120, 140609, 148568, 160696, 185710, 200870, 207760, 212240, 281218, 297136, 321392, 371420, 401740, 562436, 703045, 742840, 803480, 984263, 1124872, 1406090, 1485680, 1606960, 1968526, 2249744, 2812180, 3937052, 4921315, 5624360, 7874104, 9842630, 11248720, 15748208, 19685260, 39370520, 78741040]

約数ペア:

[(1, 78741040), (2, 39370520), (4, 19685260), (5, 15748208), (7, 11248720), (8, 9842630), (10, 7874104), (14, 5624360), (16, 4921315), (20, 3937052), (28, 2812180), (35, 2249744), (40, 1968526), (49, 1606960), (53, 1485680), (56, 1406090), (70, 1124872), (80, 984263), (98, 803480), (106, 742840), (112, 703045), (140, 562436), (196, 401740), (212, 371420), (245, 321392), (265, 297136), (280, 281218), (371, 212240), (379, 207760), (392, 200870), (424, 185710), (490, 160696), (530, 148568), (560, 140609), (742, 106120), (758, 103880), (784, 100435), (848, 92855), (980, 80348), (1060, 74284), (1484, 53060), (1516, 51940), (1855, 42448), (1895, 41552), (1960, 40174), (2120, 37142), (2597, 30320), (2653, 29680), (2968, 26530), (3032, 25970), (3710, 21224), (3790, 20776), (3920, 20087), (4240, 18571), (5194, 15160), (5306, 14840), (5936, 13265), (6064, 12985), (7420, 10612), (7580, 10388)]