90817720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:477

約数の個数: 128

約数和(自身を含む): 252172800

約数和(自身を除く): 161355080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 43, 56, 70, 76, 86, 95, 133, 140, 152, 172, 190, 215, 266, 280, 301, 344, 380, 397, 430, 532, 602, 665, 760, 794, 817, 860, 1064, 1204, 1330, 1505, 1588, 1634, 1720, 1985, 2408, 2660, 2779, 3010, 3176, 3268, 3970, 4085, 5320, 5558, 5719, 6020, 6536, 7543, 7940, 8170, 11116, 11438, 12040, 13895, 15086, 15880, 16340, 17071, 22232, 22876, 27790, 28595, 30172, 32680, 34142, 37715, 45752, 52801, 55580, 57190, 60344, 68284, 75430, 85355, 105602, 111160, 114380, 119497, 136568, 150860, 170710, 211204, 228760, 238994, 264005, 301720, 324349, 341420, 422408, 477988, 528010, 597485, 648698, 682840, 955976, 1056020, 1194970, 1297396, 1621745, 2112040, 2270443, 2389940, 2594792, 3243490, 4540886, 4779880, 6486980, 9081772, 11352215, 12973960, 18163544, 22704430, 45408860, 90817720]

約数ペア:

[(1, 90817720), (2, 45408860), (4, 22704430), (5, 18163544), (7, 12973960), (8, 11352215), (10, 9081772), (14, 6486980), (19, 4779880), (20, 4540886), (28, 3243490), (35, 2594792), (38, 2389940), (40, 2270443), (43, 2112040), (56, 1621745), (70, 1297396), (76, 1194970), (86, 1056020), (95, 955976), (133, 682840), (140, 648698), (152, 597485), (172, 528010), (190, 477988), (215, 422408), (266, 341420), (280, 324349), (301, 301720), (344, 264005), (380, 238994), (397, 228760), (430, 211204), (532, 170710), (602, 150860), (665, 136568), (760, 119497), (794, 114380), (817, 111160), (860, 105602), (1064, 85355), (1204, 75430), (1330, 68284), (1505, 60344), (1588, 57190), (1634, 55580), (1720, 52801), (1985, 45752), (2408, 37715), (2660, 34142), (2779, 32680), (3010, 30172), (3176, 28595), (3268, 27790), (3970, 22876), (4085, 22232), (5320, 17071), (5558, 16340), (5719, 15880), (6020, 15086), (6536, 13895), (7543, 12040), (7940, 11438), (8170, 11116)]