71971250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:181

約数の個数: 80

約数和(自身を含む): 150101952

約数和(自身を除く): 78130702

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 103, 125, 130, 206, 215, 250, 325, 430, 515, 559, 625, 650, 1030, 1075, 1118, 1250, 1339, 1625, 2150, 2575, 2678, 2795, 3250, 4429, 5150, 5375, 5590, 6695, 8125, 8858, 10750, 12875, 13390, 13975, 16250, 22145, 25750, 26875, 27950, 33475, 44290, 53750, 57577, 64375, 66950, 69875, 110725, 115154, 128750, 139750, 167375, 221450, 287885, 334750, 349375, 553625, 575770, 698750, 836875, 1107250, 1439425, 1673750, 2768125, 2878850, 5536250, 7197125, 14394250, 35985625, 71971250]

約数ペア:

[(1, 71971250), (2, 35985625), (5, 14394250), (10, 7197125), (13, 5536250), (25, 2878850), (26, 2768125), (43, 1673750), (50, 1439425), (65, 1107250), (86, 836875), (103, 698750), (125, 575770), (130, 553625), (206, 349375), (215, 334750), (250, 287885), (325, 221450), (430, 167375), (515, 139750), (559, 128750), (625, 115154), (650, 110725), (1030, 69875), (1075, 66950), (1118, 64375), (1250, 57577), (1339, 53750), (1625, 44290), (2150, 33475), (2575, 27950), (2678, 26875), (2795, 25750), (3250, 22145), (4429, 16250), (5150, 13975), (5375, 13390), (5590, 12875), (6695, 10750), (8125, 8858)]