13191320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1021}}^1$

素因数の和:1068

約数の個数: 64

約数和(自身を含む): 33112800

約数和(自身を除く): 19921480

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, 1021, 1292, 1615, 2042, 2584, 3230, 4084, 5105, 6460, 8168, 10210, 12920, 17357, 19399, 20420, 34714, 38798, 40840, 69428, 77596, 86785, 96995, 138856, 155192, 173570, 193990, 329783, 347140, 387980, 659566, 694280, 775960, 1319132, 1648915, 2638264, 3297830, 6595660, 13191320]

約数ペア:

[(1, 13191320), (2, 6595660), (4, 3297830), (5, 2638264), (8, 1648915), (10, 1319132), (17, 775960), (19, 694280), (20, 659566), (34, 387980), (38, 347140), (40, 329783), (68, 193990), (76, 173570), (85, 155192), (95, 138856), (136, 96995), (152, 86785), (170, 77596), (190, 69428), (323, 40840), (340, 38798), (380, 34714), (646, 20420), (680, 19399), (760, 17357), (1021, 12920), (1292, 10210), (1615, 8168), (2042, 6460), (2584, 5105), (3230, 4084)]