38618860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:431

約数の個数: 72

約数和(自身を含む): 95319504

約数和(自身を除く): 56700644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 157, 196, 245, 251, 314, 490, 502, 628, 785, 980, 1004, 1099, 1255, 1570, 1757, 2198, 2510, 3140, 3514, 4396, 5020, 5495, 7028, 7693, 8785, 10990, 12299, 15386, 17570, 21980, 24598, 30772, 35140, 38465, 39407, 49196, 61495, 76930, 78814, 122990, 153860, 157628, 197035, 245980, 275849, 394070, 551698, 788140, 1103396, 1379245, 1930943, 2758490, 3861886, 5516980, 7723772, 9654715, 19309430, 38618860]

約数ペア:

[(1, 38618860), (2, 19309430), (4, 9654715), (5, 7723772), (7, 5516980), (10, 3861886), (14, 2758490), (20, 1930943), (28, 1379245), (35, 1103396), (49, 788140), (70, 551698), (98, 394070), (140, 275849), (157, 245980), (196, 197035), (245, 157628), (251, 153860), (314, 122990), (490, 78814), (502, 76930), (628, 61495), (785, 49196), (980, 39407), (1004, 38465), (1099, 35140), (1255, 30772), (1570, 24598), (1757, 21980), (2198, 17570), (2510, 15386), (3140, 12299), (3514, 10990), (4396, 8785), (5020, 7693), (5495, 7028)]