81709440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{42557}}^1$

素因数の和:42579

約数の個数: 64

約数和(自身を含む): 260454960

約数和(自身を除く): 178745520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 42557, 85114, 127671, 170228, 212785, 255342, 340456, 425570, 510684, 638355, 680912, 851140, 1021368, 1276710, 1361824, 1702280, 2042736, 2553420, 2723648, 3404560, 4085472, 5106840, 5447296, 6809120, 8170944, 10213680, 13618240, 16341888, 20427360, 27236480, 40854720, 81709440]

約数ペア:

[(1, 81709440), (2, 40854720), (3, 27236480), (4, 20427360), (5, 16341888), (6, 13618240), (8, 10213680), (10, 8170944), (12, 6809120), (15, 5447296), (16, 5106840), (20, 4085472), (24, 3404560), (30, 2723648), (32, 2553420), (40, 2042736), (48, 1702280), (60, 1361824), (64, 1276710), (80, 1021368), (96, 851140), (120, 680912), (128, 638355), (160, 510684), (192, 425570), (240, 340456), (320, 255342), (384, 212785), (480, 170228), (640, 127671), (960, 85114), (1920, 42557)]