18580275

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 38997504

約数和(自身を除く): 20417229

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 47, 63, 75, 105, 141, 175, 225, 235, 251, 315, 329, 423, 525, 705, 753, 987, 1175, 1255, 1575, 1645, 1757, 2115, 2259, 2961, 3525, 3765, 4935, 5271, 6275, 8225, 8785, 10575, 11295, 11797, 14805, 15813, 18825, 24675, 26355, 35391, 43925, 56475, 58985, 74025, 79065, 82579, 106173, 131775, 176955, 247737, 294925, 395325, 412895, 530865, 743211, 884775, 1238685, 2064475, 2654325, 3716055, 6193425, 18580275]

約数ペア:

[(1, 18580275), (3, 6193425), (5, 3716055), (7, 2654325), (9, 2064475), (15, 1238685), (21, 884775), (25, 743211), (35, 530865), (45, 412895), (47, 395325), (63, 294925), (75, 247737), (105, 176955), (141, 131775), (175, 106173), (225, 82579), (235, 79065), (251, 74025), (315, 58985), (329, 56475), (423, 43925), (525, 35391), (705, 26355), (753, 24675), (987, 18825), (1175, 15813), (1255, 14805), (1575, 11797), (1645, 11295), (1757, 10575), (2115, 8785), (2259, 8225), (2961, 6275), (3525, 5271), (3765, 4935)]