640643694720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{333668591}}^1$

素因数の和:333668613

約数の個数: 64

約数和(自身を含む): 2042051783040

約数和(自身を除く): 1401408088320

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, 333668591, 667337182, 1001005773, 1334674364, 1668342955, 2002011546, 2669348728, 3336685910, 4004023092, 5005028865, 5338697456, 6673371820, 8008046184, 10010057730, 10677394912, 13346743640, 16016092368, 20020115460, 21354789824, 26693487280, 32032184736, 40040230920, 42709579648, 53386974560, 64064369472, 80080461840, 106773949120, 128128738944, 160160923680, 213547898240, 320321847360, 640643694720]

約数ペア:

[(1, 640643694720), (2, 320321847360), (3, 213547898240), (4, 160160923680), (5, 128128738944), (6, 106773949120), (8, 80080461840), (10, 64064369472), (12, 53386974560), (15, 42709579648), (16, 40040230920), (20, 32032184736), (24, 26693487280), (30, 21354789824), (32, 20020115460), (40, 16016092368), (48, 13346743640), (60, 10677394912), (64, 10010057730), (80, 8008046184), (96, 6673371820), (120, 5338697456), (128, 5005028865), (160, 4004023092), (192, 3336685910), (240, 2669348728), (320, 2002011546), (384, 1668342955), (480, 1334674364), (640, 1001005773), (960, 667337182), (1920, 333668591)]