78215300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:501

約数の個数: 72

約数和(自身を含む): 181550880

約数和(自身を除く): 103335580

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 139, 170, 278, 331, 340, 425, 556, 662, 695, 850, 1324, 1390, 1655, 1700, 2363, 2780, 3310, 3475, 4726, 5627, 6620, 6950, 8275, 9452, 11254, 11815, 13900, 16550, 22508, 23630, 28135, 33100, 46009, 47260, 56270, 59075, 92018, 112540, 118150, 140675, 184036, 230045, 236300, 281350, 460090, 562700, 782153, 920180, 1150225, 1564306, 2300450, 3128612, 3910765, 4600900, 7821530, 15643060, 19553825, 39107650, 78215300]

約数ペア:

[(1, 78215300), (2, 39107650), (4, 19553825), (5, 15643060), (10, 7821530), (17, 4600900), (20, 3910765), (25, 3128612), (34, 2300450), (50, 1564306), (68, 1150225), (85, 920180), (100, 782153), (139, 562700), (170, 460090), (278, 281350), (331, 236300), (340, 230045), (425, 184036), (556, 140675), (662, 118150), (695, 112540), (850, 92018), (1324, 59075), (1390, 56270), (1655, 47260), (1700, 46009), (2363, 33100), (2780, 28135), (3310, 23630), (3475, 22508), (4726, 16550), (5627, 13900), (6620, 11815), (6950, 11254), (8275, 9452)]