15638805

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:120

約数の個数: 128

約数和(自身を含む): 36556800

約数和(自身を除く): 20917995

約数列:

[1, 3, 5, 7, 9, 13, 15, 19, 21, 27, 35, 39, 45, 57, 63, 65, 67, 91, 95, 105, 117, 133, 135, 171, 189, 195, 201, 247, 273, 285, 315, 335, 351, 399, 455, 469, 513, 585, 603, 665, 741, 819, 855, 871, 945, 1005, 1197, 1235, 1273, 1365, 1407, 1729, 1755, 1809, 1995, 2223, 2345, 2457, 2565, 2613, 3015, 3591, 3705, 3819, 4095, 4221, 4355, 5187, 5985, 6097, 6365, 6669, 7035, 7839, 8645, 8911, 9045, 11115, 11457, 12285, 12663, 13065, 15561, 16549, 17955, 18291, 19095, 21105, 23517, 25935, 26733, 30485, 33345, 34371, 39195, 44555, 46683, 49647, 54873, 57285, 63315, 77805, 80199, 82745, 91455, 115843, 117585, 133665, 148941, 164619, 171855, 233415, 240597, 248235, 274365, 347529, 400995, 446823, 579215, 744705, 823095, 1042587, 1202985, 1737645, 2234115, 3127761, 5212935, 15638805]

約数ペア:

[(1, 15638805), (3, 5212935), (5, 3127761), (7, 2234115), (9, 1737645), (13, 1202985), (15, 1042587), (19, 823095), (21, 744705), (27, 579215), (35, 446823), (39, 400995), (45, 347529), (57, 274365), (63, 248235), (65, 240597), (67, 233415), (91, 171855), (95, 164619), (105, 148941), (117, 133665), (133, 117585), (135, 115843), (171, 91455), (189, 82745), (195, 80199), (201, 77805), (247, 63315), (273, 57285), (285, 54873), (315, 49647), (335, 46683), (351, 44555), (399, 39195), (455, 34371), (469, 33345), (513, 30485), (585, 26733), (603, 25935), (665, 23517), (741, 21105), (819, 19095), (855, 18291), (871, 17955), (945, 16549), (1005, 15561), (1197, 13065), (1235, 12663), (1273, 12285), (1365, 11457), (1407, 11115), (1729, 9045), (1755, 8911), (1809, 8645), (1995, 7839), (2223, 7035), (2345, 6669), (2457, 6365), (2565, 6097), (2613, 5985), (3015, 5187), (3591, 4355), (3705, 4221), (3819, 4095)]