291694720

素因数分解:

$2^7\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1907}}^1$

素因数の和:2165

約数の個数: 64

約数和(自身を含む): 700617600

約数和(自身を除く): 408922880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 320, 478, 640, 956, 1195, 1907, 1912, 2390, 3814, 3824, 4780, 7628, 7648, 9535, 9560, 15256, 15296, 19070, 19120, 30512, 30592, 38140, 38240, 61024, 76280, 76480, 122048, 152560, 152960, 244096, 305120, 455773, 610240, 911546, 1220480, 1823092, 2278865, 3646184, 4557730, 7292368, 9115460, 14584736, 18230920, 29169472, 36461840, 58338944, 72923680, 145847360, 291694720]

約数ペア:

[(1, 291694720), (2, 145847360), (4, 72923680), (5, 58338944), (8, 36461840), (10, 29169472), (16, 18230920), (20, 14584736), (32, 9115460), (40, 7292368), (64, 4557730), (80, 3646184), (128, 2278865), (160, 1823092), (239, 1220480), (320, 911546), (478, 610240), (640, 455773), (956, 305120), (1195, 244096), (1907, 152960), (1912, 152560), (2390, 122048), (3814, 76480), (3824, 76280), (4780, 61024), (7628, 38240), (7648, 38140), (9535, 30592), (9560, 30512), (15256, 19120), (15296, 19070)]