20142280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1559}}^1$

素因数の和:1606

約数の個数: 64

約数和(自身を含む): 50544000

約数和(自身を除く): 30401720

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, 646, 680, 760, 1292, 1559, 1615, 2584, 3118, 3230, 6236, 6460, 7795, 12472, 12920, 15590, 26503, 29621, 31180, 53006, 59242, 62360, 106012, 118484, 132515, 148105, 212024, 236968, 265030, 296210, 503557, 530060, 592420, 1007114, 1060120, 1184840, 2014228, 2517785, 4028456, 5035570, 10071140, 20142280]

約数ペア:

[(1, 20142280), (2, 10071140), (4, 5035570), (5, 4028456), (8, 2517785), (10, 2014228), (17, 1184840), (19, 1060120), (20, 1007114), (34, 592420), (38, 530060), (40, 503557), (68, 296210), (76, 265030), (85, 236968), (95, 212024), (136, 148105), (152, 132515), (170, 118484), (190, 106012), (323, 62360), (340, 59242), (380, 53006), (646, 31180), (680, 29621), (760, 26503), (1292, 15590), (1559, 12920), (1615, 12472), (2584, 7795), (3118, 6460), (3230, 6236)]