1863225

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{13}}^2$

素因数の和:56

約数の個数: 81

約数和(自身を含む): 4203693

約数和(自身を除く): 2340468

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 35, 39, 45, 49, 63, 65, 75, 91, 105, 117, 147, 169, 175, 195, 225, 245, 273, 315, 325, 441, 455, 507, 525, 585, 637, 735, 819, 845, 975, 1183, 1225, 1365, 1521, 1575, 1911, 2205, 2275, 2535, 2925, 3185, 3549, 3675, 4095, 4225, 5733, 5915, 6825, 7605, 8281, 9555, 10647, 11025, 12675, 15925, 17745, 20475, 24843, 28665, 29575, 38025, 41405, 47775, 53235, 74529, 88725, 124215, 143325, 207025, 266175, 372645, 621075, 1863225]

約数ペア:

[(1, 1863225), (3, 621075), (5, 372645), (7, 266175), (9, 207025), (13, 143325), (15, 124215), (21, 88725), (25, 74529), (35, 53235), (39, 47775), (45, 41405), (49, 38025), (63, 29575), (65, 28665), (75, 24843), (91, 20475), (105, 17745), (117, 15925), (147, 12675), (169, 11025), (175, 10647), (195, 9555), (225, 8281), (245, 7605), (273, 6825), (315, 5915), (325, 5733), (441, 4225), (455, 4095), (507, 3675), (525, 3549), (585, 3185), (637, 2925), (735, 2535), (819, 2275), (845, 2205), (975, 1911), (1183, 1575), (1225, 1521)]