81782460

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2657}}^1$

素因数の和:2697

約数の個数: 120

約数和(自身を含む): 270159120

約数和(自身を除く): 188376660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 684, 810, 855, 1026, 1140, 1539, 1620, 1710, 2052, 2565, 2657, 3078, 3420, 5130, 5314, 6156, 7695, 7971, 10260, 10628, 13285, 15390, 15942, 23913, 26570, 30780, 31884, 39855, 47826, 50483, 53140, 71739, 79710, 95652, 100966, 119565, 143478, 151449, 159420, 201932, 215217, 239130, 252415, 286956, 302898, 358695, 430434, 454347, 478260, 504830, 605796, 717390, 757245, 860868, 908694, 1009660, 1076085, 1363041, 1434780, 1514490, 1817388, 2152170, 2271735, 2726082, 3028980, 4089123, 4304340, 4543470, 5452164, 6815205, 8178246, 9086940, 13630410, 16356492, 20445615, 27260820, 40891230, 81782460]

約数ペア:

[(1, 81782460), (2, 40891230), (3, 27260820), (4, 20445615), (5, 16356492), (6, 13630410), (9, 9086940), (10, 8178246), (12, 6815205), (15, 5452164), (18, 4543470), (19, 4304340), (20, 4089123), (27, 3028980), (30, 2726082), (36, 2271735), (38, 2152170), (45, 1817388), (54, 1514490), (57, 1434780), (60, 1363041), (76, 1076085), (81, 1009660), (90, 908694), (95, 860868), (108, 757245), (114, 717390), (135, 605796), (162, 504830), (171, 478260), (180, 454347), (190, 430434), (228, 358695), (270, 302898), (285, 286956), (324, 252415), (342, 239130), (380, 215217), (405, 201932), (513, 159420), (540, 151449), (570, 143478), (684, 119565), (810, 100966), (855, 95652), (1026, 79710), (1140, 71739), (1539, 53140), (1620, 50483), (1710, 47826), (2052, 39855), (2565, 31884), (2657, 30780), (3078, 26570), (3420, 23913), (5130, 15942), (5314, 15390), (6156, 13285), (7695, 10628), (7971, 10260)]