20540310

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:270

約数の個数: 96

約数和(自身を含む): 58358880

約数和(自身を除く): 37818570

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 89, 98, 105, 147, 157, 178, 210, 245, 267, 294, 314, 445, 471, 490, 534, 623, 735, 785, 890, 942, 1099, 1246, 1335, 1470, 1570, 1869, 2198, 2355, 2670, 3115, 3297, 3738, 4361, 4710, 5495, 6230, 6594, 7693, 8722, 9345, 10990, 13083, 13973, 15386, 16485, 18690, 21805, 23079, 26166, 27946, 32970, 38465, 41919, 43610, 46158, 65415, 69865, 76930, 83838, 97811, 115395, 130830, 139730, 195622, 209595, 230790, 293433, 419190, 489055, 586866, 684677, 978110, 1369354, 1467165, 2054031, 2934330, 3423385, 4108062, 6846770, 10270155, 20540310]

約数ペア:

[(1, 20540310), (2, 10270155), (3, 6846770), (5, 4108062), (6, 3423385), (7, 2934330), (10, 2054031), (14, 1467165), (15, 1369354), (21, 978110), (30, 684677), (35, 586866), (42, 489055), (49, 419190), (70, 293433), (89, 230790), (98, 209595), (105, 195622), (147, 139730), (157, 130830), (178, 115395), (210, 97811), (245, 83838), (267, 76930), (294, 69865), (314, 65415), (445, 46158), (471, 43610), (490, 41919), (534, 38465), (623, 32970), (735, 27946), (785, 26166), (890, 23079), (942, 21805), (1099, 18690), (1246, 16485), (1335, 15386), (1470, 13973), (1570, 13083), (1869, 10990), (2198, 9345), (2355, 8722), (2670, 7693), (3115, 6594), (3297, 6230), (3738, 5495), (4361, 4710)]