2561580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 9434880

約数和(自身を除く): 6873300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 107, 114, 126, 133, 140, 171, 180, 190, 210, 214, 228, 252, 266, 285, 315, 321, 342, 380, 399, 420, 428, 532, 535, 570, 630, 642, 665, 684, 749, 798, 855, 963, 1070, 1140, 1197, 1260, 1284, 1330, 1498, 1596, 1605, 1710, 1926, 1995, 2033, 2140, 2247, 2394, 2660, 2996, 3210, 3420, 3745, 3852, 3990, 4066, 4494, 4788, 4815, 5985, 6099, 6420, 6741, 7490, 7980, 8132, 8988, 9630, 10165, 11235, 11970, 12198, 13482, 14231, 14980, 18297, 19260, 20330, 22470, 23940, 24396, 26964, 28462, 30495, 33705, 36594, 40660, 42693, 44940, 56924, 60990, 67410, 71155, 73188, 85386, 91485, 121980, 128079, 134820, 142310, 170772, 182970, 213465, 256158, 284620, 365940, 426930, 512316, 640395, 853860, 1280790, 2561580]

約数ペア:

[(1, 2561580), (2, 1280790), (3, 853860), (4, 640395), (5, 512316), (6, 426930), (7, 365940), (9, 284620), (10, 256158), (12, 213465), (14, 182970), (15, 170772), (18, 142310), (19, 134820), (20, 128079), (21, 121980), (28, 91485), (30, 85386), (35, 73188), (36, 71155), (38, 67410), (42, 60990), (45, 56924), (57, 44940), (60, 42693), (63, 40660), (70, 36594), (76, 33705), (84, 30495), (90, 28462), (95, 26964), (105, 24396), (107, 23940), (114, 22470), (126, 20330), (133, 19260), (140, 18297), (171, 14980), (180, 14231), (190, 13482), (210, 12198), (214, 11970), (228, 11235), (252, 10165), (266, 9630), (285, 8988), (315, 8132), (321, 7980), (342, 7490), (380, 6741), (399, 6420), (420, 6099), (428, 5985), (532, 4815), (535, 4788), (570, 4494), (630, 4066), (642, 3990), (665, 3852), (684, 3745), (749, 3420), (798, 3210), (855, 2996), (963, 2660), (1070, 2394), (1140, 2247), (1197, 2140), (1260, 2033), (1284, 1995), (1330, 1926), (1498, 1710), (1596, 1605)]