251236480

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:438

約数の個数: 128

約数和(自身を含む): 662722560

約数和(自身を除く): 411486080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 127, 128, 160, 176, 220, 254, 281, 320, 352, 440, 508, 562, 635, 640, 704, 880, 1016, 1124, 1270, 1397, 1405, 1408, 1760, 2032, 2248, 2540, 2794, 2810, 3091, 3520, 4064, 4496, 5080, 5588, 5620, 6182, 6985, 7040, 8128, 8992, 10160, 11176, 11240, 12364, 13970, 15455, 16256, 17984, 20320, 22352, 22480, 24728, 27940, 30910, 35687, 35968, 40640, 44704, 44960, 49456, 55880, 61820, 71374, 81280, 89408, 89920, 98912, 111760, 123640, 142748, 178435, 178816, 179840, 197824, 223520, 247280, 285496, 356870, 392557, 395648, 447040, 494560, 570992, 713740, 785114, 894080, 989120, 1141984, 1427480, 1570228, 1962785, 1978240, 2283968, 2854960, 3140456, 3925570, 4567936, 5709920, 6280912, 7851140, 11419840, 12561824, 15702280, 22839680, 25123648, 31404560, 50247296, 62809120, 125618240, 251236480]

約数ペア:

[(1, 251236480), (2, 125618240), (4, 62809120), (5, 50247296), (8, 31404560), (10, 25123648), (11, 22839680), (16, 15702280), (20, 12561824), (22, 11419840), (32, 7851140), (40, 6280912), (44, 5709920), (55, 4567936), (64, 3925570), (80, 3140456), (88, 2854960), (110, 2283968), (127, 1978240), (128, 1962785), (160, 1570228), (176, 1427480), (220, 1141984), (254, 989120), (281, 894080), (320, 785114), (352, 713740), (440, 570992), (508, 494560), (562, 447040), (635, 395648), (640, 392557), (704, 356870), (880, 285496), (1016, 247280), (1124, 223520), (1270, 197824), (1397, 179840), (1405, 178816), (1408, 178435), (1760, 142748), (2032, 123640), (2248, 111760), (2540, 98912), (2794, 89920), (2810, 89408), (3091, 81280), (3520, 71374), (4064, 61820), (4496, 55880), (5080, 49456), (5588, 44960), (5620, 44704), (6182, 40640), (6985, 35968), (7040, 35687), (8128, 30910), (8992, 27940), (10160, 24728), (11176, 22480), (11240, 22352), (12364, 20320), (13970, 17984), (15455, 16256)]