8152520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 20476800

約数和(自身を除く): 12324280

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 631, 646, 680, 760, 1262, 1292, 1615, 2524, 2584, 3155, 3230, 5048, 6310, 6460, 10727, 11989, 12620, 12920, 21454, 23978, 25240, 42908, 47956, 53635, 59945, 85816, 95912, 107270, 119890, 203813, 214540, 239780, 407626, 429080, 479560, 815252, 1019065, 1630504, 2038130, 4076260, 8152520]

約数ペア:

[(1, 8152520), (2, 4076260), (4, 2038130), (5, 1630504), (8, 1019065), (10, 815252), (17, 479560), (19, 429080), (20, 407626), (34, 239780), (38, 214540), (40, 203813), (68, 119890), (76, 107270), (85, 95912), (95, 85816), (136, 59945), (152, 53635), (170, 47956), (190, 42908), (323, 25240), (340, 23978), (380, 21454), (631, 12920), (646, 12620), (680, 11989), (760, 10727), (1262, 6460), (1292, 6310), (1615, 5048), (2524, 3230), (2584, 3155)]