31284765

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 58924800

約数和(自身を除く): 27640035

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 61, 87, 131, 135, 145, 183, 261, 305, 393, 435, 549, 655, 783, 915, 1179, 1305, 1647, 1769, 1965, 2745, 3537, 3799, 3915, 5307, 5895, 7991, 8235, 8845, 11397, 15921, 17685, 18995, 23973, 26535, 34191, 39955, 47763, 56985, 71919, 79605, 102573, 119865, 170955, 215757, 231739, 238815, 359595, 512865, 695217, 1078785, 1158695, 2085651, 3476085, 6256953, 10428255, 31284765]

約数ペア:

[(1, 31284765), (3, 10428255), (5, 6256953), (9, 3476085), (15, 2085651), (27, 1158695), (29, 1078785), (45, 695217), (61, 512865), (87, 359595), (131, 238815), (135, 231739), (145, 215757), (183, 170955), (261, 119865), (305, 102573), (393, 79605), (435, 71919), (549, 56985), (655, 47763), (783, 39955), (915, 34191), (1179, 26535), (1305, 23973), (1647, 18995), (1769, 17685), (1965, 15921), (2745, 11397), (3537, 8845), (3799, 8235), (3915, 7991), (5307, 5895)]