27861990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{359}}^1$

素因数の和:581

約数の個数: 64

約数和(自身を含む): 72576000

約数和(自身を除く): 44714010

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 199, 359, 390, 398, 597, 718, 995, 1077, 1194, 1795, 1990, 2154, 2587, 2985, 3590, 4667, 5174, 5385, 5970, 7761, 9334, 10770, 12935, 14001, 15522, 23335, 25870, 28002, 38805, 46670, 70005, 71441, 77610, 140010, 142882, 214323, 357205, 428646, 714410, 928733, 1071615, 1857466, 2143230, 2786199, 4643665, 5572398, 9287330, 13930995, 27861990]

約数ペア:

[(1, 27861990), (2, 13930995), (3, 9287330), (5, 5572398), (6, 4643665), (10, 2786199), (13, 2143230), (15, 1857466), (26, 1071615), (30, 928733), (39, 714410), (65, 428646), (78, 357205), (130, 214323), (195, 142882), (199, 140010), (359, 77610), (390, 71441), (398, 70005), (597, 46670), (718, 38805), (995, 28002), (1077, 25870), (1194, 23335), (1795, 15522), (1990, 14001), (2154, 12935), (2587, 10770), (2985, 9334), (3590, 7761), (4667, 5970), (5174, 5385)]