80237990

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 170640000

約数和(自身を除く): 90402010

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 149, 157, 245, 298, 314, 343, 490, 686, 745, 785, 1043, 1099, 1490, 1570, 1715, 2086, 2198, 3430, 5215, 5495, 7301, 7693, 10430, 10990, 14602, 15386, 23393, 36505, 38465, 46786, 51107, 53851, 73010, 76930, 102214, 107702, 116965, 163751, 233930, 255535, 269255, 327502, 511070, 538510, 818755, 1146257, 1637510, 2292514, 5731285, 8023799, 11462570, 16047598, 40118995, 80237990]

約数ペア:

[(1, 80237990), (2, 40118995), (5, 16047598), (7, 11462570), (10, 8023799), (14, 5731285), (35, 2292514), (49, 1637510), (70, 1146257), (98, 818755), (149, 538510), (157, 511070), (245, 327502), (298, 269255), (314, 255535), (343, 233930), (490, 163751), (686, 116965), (745, 107702), (785, 102214), (1043, 76930), (1099, 73010), (1490, 53851), (1570, 51107), (1715, 46786), (2086, 38465), (2198, 36505), (3430, 23393), (5215, 15386), (5495, 14602), (7301, 10990), (7693, 10430)]