72665775

素因数分解:

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

素因数の和:72

約数の個数: 144

約数和(自身を含む): 168218400

約数和(自身を除く): 95552625

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 27, 35, 39, 45, 49, 63, 65, 75, 91, 105, 117, 135, 147, 169, 175, 189, 195, 225, 245, 273, 315, 325, 351, 441, 455, 507, 525, 585, 637, 675, 735, 819, 845, 945, 975, 1183, 1225, 1323, 1365, 1521, 1575, 1755, 1911, 2197, 2205, 2275, 2457, 2535, 2925, 3185, 3549, 3675, 4095, 4225, 4563, 4725, 5733, 5915, 6591, 6615, 6825, 7605, 8281, 8775, 9555, 10647, 10985, 11025, 12285, 12675, 15379, 15925, 17199, 17745, 19773, 20475, 22815, 24843, 28665, 29575, 31941, 32955, 33075, 38025, 41405, 46137, 47775, 53235, 54925, 59319, 61425, 74529, 76895, 85995, 88725, 98865, 107653, 114075, 124215, 138411, 143325, 159705, 164775, 207025, 223587, 230685, 266175, 296595, 322959, 372645, 384475, 415233, 429975, 494325, 538265, 621075, 692055, 798525, 968877, 1117935, 1153425, 1482975, 1614795, 1863225, 2076165, 2691325, 2906631, 3460275, 4844385, 5589675, 8073975, 10380825, 14533155, 24221925, 72665775]

約数ペア:

[(1, 72665775), (3, 24221925), (5, 14533155), (7, 10380825), (9, 8073975), (13, 5589675), (15, 4844385), (21, 3460275), (25, 2906631), (27, 2691325), (35, 2076165), (39, 1863225), (45, 1614795), (49, 1482975), (63, 1153425), (65, 1117935), (75, 968877), (91, 798525), (105, 692055), (117, 621075), (135, 538265), (147, 494325), (169, 429975), (175, 415233), (189, 384475), (195, 372645), (225, 322959), (245, 296595), (273, 266175), (315, 230685), (325, 223587), (351, 207025), (441, 164775), (455, 159705), (507, 143325), (525, 138411), (585, 124215), (637, 114075), (675, 107653), (735, 98865), (819, 88725), (845, 85995), (945, 76895), (975, 74529), (1183, 61425), (1225, 59319), (1323, 54925), (1365, 53235), (1521, 47775), (1575, 46137), (1755, 41405), (1911, 38025), (2197, 33075), (2205, 32955), (2275, 31941), (2457, 29575), (2535, 28665), (2925, 24843), (3185, 22815), (3549, 20475), (3675, 19773), (4095, 17745), (4225, 17199), (4563, 15925), (4725, 15379), (5733, 12675), (5915, 12285), (6591, 11025), (6615, 10985), (6825, 10647), (7605, 9555), (8281, 8775)]