21483374720

素因数分解:

$2^7\times 5^1\times {\mathrm{83}}^1\times {\mathrm{404431}}^1$

素因数の和:404533

約数の個数: 64

約数和(自身を含む): 51977600640

約数和(自身を除く): 30494225920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 320, 332, 415, 640, 664, 830, 1328, 1660, 2656, 3320, 5312, 6640, 10624, 13280, 26560, 53120, 404431, 808862, 1617724, 2022155, 3235448, 4044310, 6470896, 8088620, 12941792, 16177240, 25883584, 32354480, 33567773, 51767168, 64708960, 67135546, 129417920, 134271092, 167838865, 258835840, 268542184, 335677730, 537084368, 671355460, 1074168736, 1342710920, 2148337472, 2685421840, 4296674944, 5370843680, 10741687360, 21483374720]

約数ペア:

[(1, 21483374720), (2, 10741687360), (4, 5370843680), (5, 4296674944), (8, 2685421840), (10, 2148337472), (16, 1342710920), (20, 1074168736), (32, 671355460), (40, 537084368), (64, 335677730), (80, 268542184), (83, 258835840), (128, 167838865), (160, 134271092), (166, 129417920), (320, 67135546), (332, 64708960), (415, 51767168), (640, 33567773), (664, 32354480), (830, 25883584), (1328, 16177240), (1660, 12941792), (2656, 8088620), (3320, 6470896), (5312, 4044310), (6640, 3235448), (10624, 2022155), (13280, 1617724), (26560, 808862), (53120, 404431)]