388889684120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{300691}}^1$

素因数の和:300889

約数の個数: 128

約数和(自身を含む): 1039191552000

約数和(自身を除く): 650301867880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 149, 155, 217, 248, 280, 298, 310, 434, 596, 620, 745, 868, 1043, 1085, 1192, 1240, 1490, 1736, 2086, 2170, 2980, 4172, 4340, 4619, 5215, 5960, 8344, 8680, 9238, 10430, 18476, 20860, 23095, 32333, 36952, 41720, 46190, 64666, 92380, 129332, 161665, 184760, 258664, 300691, 323330, 601382, 646660, 1202764, 1293320, 1503455, 2104837, 2405528, 3006910, 4209674, 6013820, 8419348, 9321421, 10524185, 12027640, 16838696, 18642842, 21048370, 37285684, 42096740, 44802959, 46607105, 65249947, 74571368, 84193480, 89605918, 93214210, 130499894, 179211836, 186428420, 224014795, 260999788, 313620713, 326249735, 358423672, 372856840, 448029590, 521999576, 627241426, 652499470, 896059180, 1254482852, 1304998940, 1388891729, 1568103565, 1792118360, 2508965704, 2609997880, 2777783458, 3136207130, 5555566916, 6272414260, 6944458645, 9722242103, 11111133832, 12544828520, 13888917290, 19444484206, 27777834580, 38888968412, 48611210515, 55555669160, 77777936824, 97222421030, 194444842060, 388889684120]

約数ペア:

[(1, 388889684120), (2, 194444842060), (4, 97222421030), (5, 77777936824), (7, 55555669160), (8, 48611210515), (10, 38888968412), (14, 27777834580), (20, 19444484206), (28, 13888917290), (31, 12544828520), (35, 11111133832), (40, 9722242103), (56, 6944458645), (62, 6272414260), (70, 5555566916), (124, 3136207130), (140, 2777783458), (149, 2609997880), (155, 2508965704), (217, 1792118360), (248, 1568103565), (280, 1388891729), (298, 1304998940), (310, 1254482852), (434, 896059180), (596, 652499470), (620, 627241426), (745, 521999576), (868, 448029590), (1043, 372856840), (1085, 358423672), (1192, 326249735), (1240, 313620713), (1490, 260999788), (1736, 224014795), (2086, 186428420), (2170, 179211836), (2980, 130499894), (4172, 93214210), (4340, 89605918), (4619, 84193480), (5215, 74571368), (5960, 65249947), (8344, 46607105), (8680, 44802959), (9238, 42096740), (10430, 37285684), (18476, 21048370), (20860, 18642842), (23095, 16838696), (32333, 12027640), (36952, 10524185), (41720, 9321421), (46190, 8419348), (64666, 6013820), (92380, 4209674), (129332, 3006910), (161665, 2405528), (184760, 2104837), (258664, 1503455), (300691, 1293320), (323330, 1202764), (601382, 646660)]