21294720

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{3697}}^1$

素因数の和:3722

約数の個数: 96

約数和(自身を含む): 73553220

約数和(自身を除く): 52258500

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 288, 320, 360, 384, 480, 576, 640, 720, 960, 1152, 1440, 1920, 2880, 3697, 5760, 7394, 11091, 14788, 18485, 22182, 29576, 33273, 36970, 44364, 55455, 59152, 66546, 73940, 88728, 110910, 118304, 133092, 147880, 166365, 177456, 221820, 236608, 266184, 295760, 332730, 354912, 443640, 473216, 532368, 591520, 665460, 709824, 887280, 1064736, 1183040, 1330920, 1419648, 1774560, 2129472, 2366080, 2661840, 3549120, 4258944, 5323680, 7098240, 10647360, 21294720]

約数ペア:

[(1, 21294720), (2, 10647360), (3, 7098240), (4, 5323680), (5, 4258944), (6, 3549120), (8, 2661840), (9, 2366080), (10, 2129472), (12, 1774560), (15, 1419648), (16, 1330920), (18, 1183040), (20, 1064736), (24, 887280), (30, 709824), (32, 665460), (36, 591520), (40, 532368), (45, 473216), (48, 443640), (60, 354912), (64, 332730), (72, 295760), (80, 266184), (90, 236608), (96, 221820), (120, 177456), (128, 166365), (144, 147880), (160, 133092), (180, 118304), (192, 110910), (240, 88728), (288, 73940), (320, 66546), (360, 59152), (384, 55455), (480, 44364), (576, 36970), (640, 33273), (720, 29576), (960, 22182), (1152, 18485), (1440, 14788), (1920, 11091), (2880, 7394), (3697, 5760)]