72215715

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 137313792

約数和(自身を除く): 65098077

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 131, 143, 165, 195, 257, 393, 429, 655, 715, 771, 1285, 1441, 1703, 1965, 2145, 2827, 3341, 3855, 4323, 5109, 7205, 8481, 8515, 10023, 14135, 16705, 18733, 21615, 25545, 33667, 36751, 42405, 50115, 56199, 93665, 101001, 110253, 168335, 183755, 280995, 370337, 437671, 505005, 551265, 1111011, 1313013, 1851685, 2188355, 4814381, 5555055, 6565065, 14443143, 24071905, 72215715]

約数ペア:

[(1, 72215715), (3, 24071905), (5, 14443143), (11, 6565065), (13, 5555055), (15, 4814381), (33, 2188355), (39, 1851685), (55, 1313013), (65, 1111011), (131, 551265), (143, 505005), (165, 437671), (195, 370337), (257, 280995), (393, 183755), (429, 168335), (655, 110253), (715, 101001), (771, 93665), (1285, 56199), (1441, 50115), (1703, 42405), (1965, 36751), (2145, 33667), (2827, 25545), (3341, 21615), (3855, 18733), (4323, 16705), (5109, 14135), (7205, 10023), (8481, 8515)]