138875720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1559}}^1$

素因数の和:1718

約数の個数: 64

約数和(自身を含む): 333590400

約数和(自身を除く): 194714680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 131, 136, 170, 262, 340, 524, 655, 680, 1048, 1310, 1559, 2227, 2620, 3118, 4454, 5240, 6236, 7795, 8908, 11135, 12472, 15590, 17816, 22270, 26503, 31180, 44540, 53006, 62360, 89080, 106012, 132515, 204229, 212024, 265030, 408458, 530060, 816916, 1021145, 1060120, 1633832, 2042290, 3471893, 4084580, 6943786, 8169160, 13887572, 17359465, 27775144, 34718930, 69437860, 138875720]

約数ペア:

[(1, 138875720), (2, 69437860), (4, 34718930), (5, 27775144), (8, 17359465), (10, 13887572), (17, 8169160), (20, 6943786), (34, 4084580), (40, 3471893), (68, 2042290), (85, 1633832), (131, 1060120), (136, 1021145), (170, 816916), (262, 530060), (340, 408458), (524, 265030), (655, 212024), (680, 204229), (1048, 132515), (1310, 106012), (1559, 89080), (2227, 62360), (2620, 53006), (3118, 44540), (4454, 31180), (5240, 26503), (6236, 22270), (7795, 17816), (8908, 15590), (11135, 12472)]