1320201225

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:480

約数の個数: 144

約数和(自身を含む): 2872970880

約数和(自身を除く): 1552769655

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 25, 35, 45, 57, 63, 75, 95, 105, 133, 157, 171, 175, 225, 281, 285, 315, 399, 471, 475, 525, 665, 785, 843, 855, 1099, 1197, 1405, 1413, 1425, 1575, 1967, 1995, 2355, 2529, 2983, 3297, 3325, 3925, 4215, 4275, 5339, 5495, 5901, 5985, 7025, 7065, 8949, 9835, 9891, 9975, 11775, 12645, 14915, 16017, 16485, 17703, 20881, 21075, 26695, 26847, 27475, 29505, 29925, 35325, 37373, 44117, 44745, 48051, 49175, 49455, 62643, 63225, 74575, 80085, 82425, 88515, 104405, 112119, 132351, 133475, 134235, 147525, 186865, 187929, 220585, 223725, 240255, 247275, 308819, 313215, 336357, 397053, 400425, 442575, 522025, 560595, 661755, 671175, 838223, 926457, 934325, 939645, 1102925, 1201275, 1544095, 1566075, 1681785, 1985265, 2514669, 2779371, 2802975, 3308775, 4191115, 4632285, 4698225, 5867561, 7544007, 7720475, 8408925, 9926325, 12573345, 13896855, 17602683, 20955575, 23161425, 29337805, 37720035, 52808049, 62866725, 69484275, 88013415, 146689025, 188600175, 264040245, 440067075, 1320201225]

約数ペア:

[(1, 1320201225), (3, 440067075), (5, 264040245), (7, 188600175), (9, 146689025), (15, 88013415), (19, 69484275), (21, 62866725), (25, 52808049), (35, 37720035), (45, 29337805), (57, 23161425), (63, 20955575), (75, 17602683), (95, 13896855), (105, 12573345), (133, 9926325), (157, 8408925), (171, 7720475), (175, 7544007), (225, 5867561), (281, 4698225), (285, 4632285), (315, 4191115), (399, 3308775), (471, 2802975), (475, 2779371), (525, 2514669), (665, 1985265), (785, 1681785), (843, 1566075), (855, 1544095), (1099, 1201275), (1197, 1102925), (1405, 939645), (1413, 934325), (1425, 926457), (1575, 838223), (1967, 671175), (1995, 661755), (2355, 560595), (2529, 522025), (2983, 442575), (3297, 400425), (3325, 397053), (3925, 336357), (4215, 313215), (4275, 308819), (5339, 247275), (5495, 240255), (5901, 223725), (5985, 220585), (7025, 187929), (7065, 186865), (8949, 147525), (9835, 134235), (9891, 133475), (9975, 132351), (11775, 112119), (12645, 104405), (14915, 88515), (16017, 82425), (16485, 80085), (17703, 74575), (20881, 63225), (21075, 62643), (26695, 49455), (26847, 49175), (27475, 48051), (29505, 44745), (29925, 44117), (35325, 37373)]