31513020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1$

素因数の和:408

約数の個数: 192

約数和(自身を含む): 116121600

約数和(自身を除く): 84608580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 19, 20, 21, 22, 28, 30, 33, 35, 38, 42, 44, 55, 57, 60, 66, 70, 76, 77, 84, 95, 105, 110, 114, 132, 133, 140, 154, 165, 190, 209, 210, 220, 228, 231, 266, 285, 308, 330, 359, 380, 385, 399, 418, 420, 462, 532, 570, 627, 660, 665, 718, 770, 798, 836, 924, 1045, 1077, 1140, 1155, 1254, 1330, 1436, 1463, 1540, 1596, 1795, 1995, 2090, 2154, 2310, 2508, 2513, 2660, 2926, 3135, 3590, 3949, 3990, 4180, 4308, 4389, 4620, 5026, 5385, 5852, 6270, 6821, 7180, 7315, 7539, 7898, 7980, 8778, 10052, 10770, 11847, 12540, 12565, 13642, 14630, 15078, 15796, 17556, 19745, 20463, 21540, 21945, 23694, 25130, 27284, 27643, 29260, 30156, 34105, 37695, 39490, 40926, 43890, 47388, 47747, 50260, 55286, 59235, 68210, 75031, 75390, 78980, 81852, 82929, 87780, 95494, 102315, 110572, 118470, 136420, 138215, 143241, 150062, 150780, 165858, 190988, 204630, 225093, 236940, 238735, 276430, 286482, 300124, 331716, 375155, 409260, 414645, 450186, 477470, 525217, 552860, 572964, 716205, 750310, 829290, 900372, 954940, 1050434, 1125465, 1432410, 1500620, 1575651, 1658580, 2100868, 2250930, 2626085, 2864820, 3151302, 4501860, 5252170, 6302604, 7878255, 10504340, 15756510, 31513020]

約数ペア:

[(1, 31513020), (2, 15756510), (3, 10504340), (4, 7878255), (5, 6302604), (6, 5252170), (7, 4501860), (10, 3151302), (11, 2864820), (12, 2626085), (14, 2250930), (15, 2100868), (19, 1658580), (20, 1575651), (21, 1500620), (22, 1432410), (28, 1125465), (30, 1050434), (33, 954940), (35, 900372), (38, 829290), (42, 750310), (44, 716205), (55, 572964), (57, 552860), (60, 525217), (66, 477470), (70, 450186), (76, 414645), (77, 409260), (84, 375155), (95, 331716), (105, 300124), (110, 286482), (114, 276430), (132, 238735), (133, 236940), (140, 225093), (154, 204630), (165, 190988), (190, 165858), (209, 150780), (210, 150062), (220, 143241), (228, 138215), (231, 136420), (266, 118470), (285, 110572), (308, 102315), (330, 95494), (359, 87780), (380, 82929), (385, 81852), (399, 78980), (418, 75390), (420, 75031), (462, 68210), (532, 59235), (570, 55286), (627, 50260), (660, 47747), (665, 47388), (718, 43890), (770, 40926), (798, 39490), (836, 37695), (924, 34105), (1045, 30156), (1077, 29260), (1140, 27643), (1155, 27284), (1254, 25130), (1330, 23694), (1436, 21945), (1463, 21540), (1540, 20463), (1596, 19745), (1795, 17556), (1995, 15796), (2090, 15078), (2154, 14630), (2310, 13642), (2508, 12565), (2513, 12540), (2660, 11847), (2926, 10770), (3135, 10052), (3590, 8778), (3949, 7980), (3990, 7898), (4180, 7539), (4308, 7315), (4389, 7180), (4620, 6821), (5026, 6270), (5385, 5852)]